Metal Lathe Cutting Speed Chart

The term “high-speed” was used when these steels were first invented. What was considered high speed machining just a few years ago is regarded as conventional today. Each is FULL-SEAL HOT LAMINATED with heavy duty (5-mil) FILM. (Comparison: the outer edge of a 10" table saw blade at 4,000 rpm is traveling at 119 mph, while the 1/2. For normal power feed on this lathe, it runs at 1/16 the speed of the spindle – so the tool marks left by a sharp tool under power feed, then, are kind of a shallow thread of 256tpi. CNC metal lathe, CNC vertical lathe, low cost CNC lathe machine manufacturer / supplier in China, offering low cost CNC lathe machine (CK518A) CNC Vertical Lathe, CNC Milling Machine VMC650 Vertical Machining Center, Horizontal high speed precision TCK520 slant bed CNC turning lathe and so on. China Lathe manufacturers - Select 2020 high quality Lathe products in best price from certified Chinese CNC Machine manufacturers, Cnc Lathe suppliers, wholesalers and factory on Made-in-China. FEATURES: A. Recommended cutting speed. Turning operations remove material from a rotating workpiece by feeding a single-point cutting tool axially, along the side of the workpiece. n m p = vT f d C. SPEED / FEED REFERENCE FOR TURNING, MILLING, AND DRILLING. The lathe is a machine tool used principally for shaping pieces of metal (and sometimes wood or other materials) by causing the workpiece to be held and rotated by the lathe while a tool bit is advanced into the work causing the cutting action. The cutting bit used can also determine the speed that the lathe needs to be set to. However, like most decisions, the choice of feed, speed and depth of cut must be based on the customer’s objectives. Machining operations may be conducted on machine tools having a rotating spindle or a rotating part (lathe). The variable speed Sherline motor is a great upgrade. 5 388 1552 3882 5823 3. The range on this mini metal lathe covers a speed of 50 - 2500 RPM, thanks to the 0. For the lathes in this shop we will be using cutting tools made of high speed steel (HSS). A tool bit is a non-rotary cutting tool used in metal lathes, shapers, and planers. Lathe Motor Is 1. in 6/12 SB1002 10K® 28" Bench Lathe-3-INTRODUCTION About This Machine Foreword "The screw cutting engine lathe is the oldest and most important of machine tools and from it all other machine tools have been developed. Grizzly Industrial Catalog 1-800-523-4777 Grizzly has a few good things in it and they carry the 7x10 Mini Lathe too. Feed at Suggested Value. 708115K, Jet JWBS-14CS Closed Stand 14in Bandsaw. lathe provides a variety of rotating speeds and suitable manual and automatic controls for moving the cutting tool. Grinding a cutting tool. 500 HSS cutter set your spindle speed from 458 to 688 rpm. Note the color-keyed, recommended cutting speed. Buy online or in-store at our locations in Northmead - Sydney, Dandenong - Melbourne, Coopers Plains - Brisbane, Belmont - Perth. Please fill out the form below with feeds and speeds that work for you and I will place them into a new database for all to use. I ended up getting a little Atlas 618 6″ by 18″ metal lathe for a hundred bucks. Lathe Tools Milling Machine Metal Working Charts Google Search Table Projects Metalworking Graph Of A Function. Sandvik Coromant offers world class products for turning, milling, drilling and tool holding. It's ideal for light tasks that wouldn't need a heavy tool for working with. 12" X 36" Combination Gunsmithing Lathe/Mill. LATHE TOOL BITS BRAZED CARBIDE SET 6 pieces. Metal cutting milling speeds for different materials. Choose a metal and grind your High Speed Steel(HSS) tool blank to the geometry listed on the“RECOMMENDED TOOL GEOMETRIES” table. F = Feed in Inches Per Minute. Advantage Plus 15500 at $63. 4= a constant for this calculation. Fairly high surface speeds should be used with moderate feeds. 035 SAE 1050 - High Carbon Steel. It is expressed in meter/min. 98 Buy product; Sherline 4400-CNC – 17″ CNC-ready Lathe. If the chart above specifies a higher RPM than your machine is capable of, it should not cause a problem to run at a lower RPM. Metal lath and hardware cloth can be cut with a tin snips, but there's an easier way. What was considered high speed machining just a few years ago is regarded as conventional today. Hard Metal Machining Embrace high speed hard metal. Drill speed chart. High-speed steel materials are not strong enough to hold up under such cutting conditions. One of the primary concerns of. Craftsman 12 Inch Metal Lathe - $950 (Monroe) For Sale 12 Inch Craftsman Metal Lathe. CCMT, TCMT, DCMT, CNMG Indexable Carbide Turning Inserts. The final piece of the puzzle for laser processing is the cutting speed. Larger workpieces require lower speeds while smaller one like the bowl require higher. for the most commonly machined materials. MT4 spindle hole gets more capacity. Adjusting feed rates using quick change gear box and tumblers. As a starting point, in terms of cutting speed for Mild Steel, try 100 feet per minute, (surface speed ), using High Speed Steel tools. Throw away those old speeds and feeds charts and pdfs. Stop the machine before making adjustments or measurements. Number of Pages: 40 This is a reproduction, not a photocopy, of an original Unimat Miniature Machine Techniques Handbook and Operator’s Manual. The lathe is the standard metalworking machine used to produce rotationally symmetric metal workpiece though precise cutting production processes. CCMT, TCMT, DCMT, CNMG Indexable Carbide Turning Inserts. for the most commonly machined materials. Cutting speeds match the ATLAS & CRAFTSMAN metal lathes and are COLOR CODED for ease of use. " Speeds and feeds are the cutting variables used in every milling operation and vary for each tool based on cutter diameter, operation, material, etc. SPINDLE SPEED DISPLAY Shows the spindle speed in Rotations Per Minute (RPMs). DRILL PRESS SPEED CHART Recommended operating speeds (RPM) Accessory Softwood (Pine) Hardwood (Hard Maple) Acrylic Brass Aluminum Steel Shop Notes Twist drill bits* 3000 3000 1500 750 3000 1500 750 500 2500 2000 1500 NR 3000 1200 750 400 3000 2500 1500 1000 3000 1000 600 350 Lubricate drill with oil when cutting steel 1/ 8" or thicker. Thread-cutting tools, knurling tools and parting tools are all used for specific cutting and texturing applications when turning steel on a lathe. Polishing plates (fig 82) should be purchased with a two speed arrangement of 1725 and 3450 rpm, or a single speed motor can be adapted for two speeds by installing a two step pulley on the motor, and a single pulley on a polishing arbor. Cutting fluid includes lubricants and coolants. A drilling machine, called a drill press, is used to cut holes into or through metal, wood, or other materials (Figure 4-1). Drills and Drivers. Using one chart, you can easily find the correct tool cutting angles and the proper cutting speeds for any of 22 different materials. It was the lathe that made possible the building of the steamboat, the locomotive, the electric motor, the. Cutting Aluminum with a 1" Coated endmill - set your spindle 1528 to 3820 rpm. This first image shows a tool blank. JET Elite Metal Lathe with ACU-RITE 203 DRO - 12Inch x 36Inch, Model E-1236VS W/ 203. The operating speed for all metal cutting operations is based on the cutting tool material and the hardness of the material to be cut. BD-405 MINI LATHE BD-712 METAL LATHE Model BD-405 Swing over bed 110 mm Distance between centers 125 mm Hole through spindle 10 mm Tailstock screw M14x1 mm Variable speed 100-3800 ±10% rpm Cross slide travel 50 mm Motor output power 150 W Overall dimension (LxWxH) 440x270x210 mm Packing Size (LxWxH) 510x380x310 mm Weight (Net/Gross) 14/16 kg. of Your Machine The metal lathe is used to remove material from a rotating workpiece, which is held in place on the spindle with a chuck or faceplate. Quickly and easily calculate the G Code needed to program corner radius and fillet radius on a cnc lathe. The lathes can be used to make simple objects as the plates. Most popular, widely useful variable speed lathe. Look, listen, and feel. LittleMachineShop. More Drills and Drivers. Note the color-keyed, recommended cutting speed. The metal lathe is a machining apparatus basically used for shaping metal pieces by holding and rotating it by the lathe while a tool bit is moved forward into the work for cutting action. Finally experiment analysis was carried out to verify the. Stop the machine before making adjustments or measurements. Higher speeds will put a light polish on the metal and also cut a groove quickly with very little pressure. 0 121 485 1213 1819 9. The oversize ball bearing spindle provides sustained accuracy through its range of 16 speeds, from 38 to 1260 rpm. Both OD and ID radius are supported. Depending on the speed of your computer, and how many ratios you have, BoxfthreadP may take a little while to do each computation and require some patience. Always mention this Model Number when communicating with us regarding your lathe or when ordering parts. The Consumer Product Safety Commission says that the most common injuries caused by lathe accidents are broken fingers, cuts to the hands and hot shrapnel in the eyes. 1-800-423-2567 The Mini Lathe ITEM 93799 VGA is occasionally on sell for as low as $329. It has a good combination of toughness and red hardness and is relatively easy to harden. ) I made a steel 20-tooth 3 deep (. From WOOD® Magazine. 99 Regular Price $469. The lathes can be used to make simple objects as the plates. A world leader in the design and manufacture of milling, turning, and holemaking tools, an expert in project - focused engineering of special cutting tool solutions, and a provider of a full range of metal removal technology for all industries. As an example, if you speed up the lathe from 1,000 to 1,410 RPM, the CF acting on every point of the workpiece will be doubled. CS= recommended cutting speed. Use the recommended cutting speed charts in Table 4. Three jaw scroll chuck included, drill chuck, tail stock MT2 taper dead center and chuck key. This Teknatool one seems to be the easiest to follow. Turning on a Lathe. or mm/min. Each precise, durable metal lathe from Baileigh will hold exacting tolerances for years. Choose a metal and grind your High Speed Steel(HSS) tool blank to the geometry listed on the“RECOMMENDED TOOL GEOMETRIES” table. this speed chart is a new design. The cutting bit used can also determine the speed that the lathe needs to be set to. The following are the lathe machine formula commonly used to calculate in turning operations: The cutting speed (v) of a tool is the speed at which the metal is removed by the tool from the workpiece. THREAD CUTTING ON THE LATHE The beauty of a lathe when you compare it to other tools is in its great versatility. If the lathe is not powerful enough it will rip. Usually there is a chart on the front of the lathe to tell you what RPM you will get from the different step pulley arrangements. , 3-Phase, Model# GH-1440-3/323408. The column of the milling chart list the Brinell Hardness, material condition and the SFPM for HSS and Carbide tools. Upping the amps. We have all kind of latest Cutting Tools available. 1: MILLING SPEEDS FOR DIFFERENT MATERIALS working on other metal machining charts - lathe and mills. IC380 P15-P30 M20-M30 S15-S25 H20-H30 TiAIN A tough submicron substrate, TiCN PVD coated and a special surface treatment. super 7 big bore lathe main drive guard speed plate ref: name9 speed plate for super 7 big bore lathes. These calculators are for reference. It is expressed in meter/min. There are many situations where this speed range is way too high for safety. Use low cutting speeds. Most popular, widely useful variable speed lathe. Klutch 49656 at $689. 95" long) gear from a purchased gear blank to use on that shaft. In the British system, cutting speed. 3—The choice of infeed method has a significant impact on the effectiveness of the threading operation. Type D - Camlock. CS= recommended cutting speed. Number of Pages: 40 This is a reproduction, not a photocopy, of an original Unimat Miniature Machine Techniques Handbook and Operator’s Manual. Cutting Speed: The cutting speed of the tool across the work will vary during the stroke as shown by the velocity diagram. Review the diagrams below to determine your spindle nose type. To cut steel, you'll need to run the machine at a much slower speed -- about a hundred feet per minute. A world leader in the design and manufacture of milling, turning, and holemaking tools, an expert in project - focused engineering of special cutting tool solutions, and a provider of a full range of metal removal technology for all industries. Do not use the reference number off of the diagram. Great for hobbyists too!. 0 139 554 1386 2079 8. Instead of swapping change gears for each thread selection, merely refer to the thread chart and rotate the alpha and numeric dials on the quick change gearbox to make the thread change. This part is made out of Plastic and it includes Two (2) Keys per pack. It is normally expressed in meters per minute (or feet per inch in British units). if you have finished, press the stop button. all metals require a certain temperature range, generated by the cutting action, where they machine the best. Cutting Speed. The term refers to the fact that the steels could be used as cutting tools at high turning speeds on a lathe. You must know the dimensions of your lathe in order to determine the maximum size and shape you can cut from your material. This value will be calculated from a selected SFPM or MPM. Stop the machine before making adjustments or measurements. Metal Lathe Cutting Tools , Find Complete Details about Metal Lathe Cutting Tools,Metal Lathe Cutting Tools,Metal Lathe Cutting Tools,Metal Lathe Cutting Tools from Milling Cutter Supplier or Manufacturer-Chengdu Diamond Tools Co. The BestEquip mini metal lathe, is a great little contender for a wide range of precision jobs. Extensive testing has developed the tool-life data and tool life charts are available now available. 11" x 26" Bench Lathe w/ Gearbox. This means that for every 16 turns of the leadscrew, the saddle advances an inch. cutting speed, rake angle, clearance angle, frequency, and amplitude of chip thickness modulation. It will be foynd on the plate on the rear side of the bed. Cutting speed, also referred to as surface speed, is the difference in speed between the tool and the workpiece, expressed in units of distance over time known as SFM (surface feet per minute). metal working lathe metal working lathe tools metal lathe cutting speed chart. Indexable Lathe Parting Off Tool Holder 16 x 38 x 90mm. A massive headstock,. The correct cutting tools are of the utmost importance so make sure your lathe is equipped with the right cutting tool. Metric threads on a South Bend 9C lathe without buying a transposing gear. 040, and a tool life of 180 minutes. This value will be calculated from a selected SFPM or MPM. Shift reverse handle only When lathe is in relatively slow speed. Last Modified: Click to Enlarge. Mini-Lathe Drill Chuck. In feet per minute. of Your Machine The metal lathe is used to remove material from a rotating workpiece, which is held in place on the spindle with a chuck or faceplate. Lathes are power machines used to shape wood, metal or other material. Feeds and Speeds: The Definitive Guide (Updated for 2020) If you're serious about CNC, you NEED to optimize your Feeds and Speeds. 10" x 22" Benchtop Metal Lathe with DRO. The range on this mini metal lathe covers a speed of 50 - 2500 RPM, thanks to the 0. Feeds and Speeds for End Milling using High Speed Steel* tooling. Buy bimetal or carbide-tooth blades for longer blade life. The speed is half of the chart speed. Metal Lathe Tools Sheet Metal Tools Manual Lathe Cnc Lathe Machine Homemade Lathe Dremel Drill Router Projects M16 Tecnologia Tap Drill charts are used to determine the size of the drill used for each tap. Using one chart, you can easily find the correct tool cutting angles and the proper cutting speeds for any of 22 different materials. The general operations done with the lathe are grooving, turning, cutting, sanding and etc. Because it is less brittle than carbide, high-speed steel might work well, although the cutting speeds in this case must be kept quite low, typically at 100 surface feet per minute or less as a starting point. Great for hobbyists too!. ‹ Rake and Relief Angles in degrees for HSS Lathe Tools. GEAR CHART FOR CUTTING IMPERIAL THREADS INDICATOR TABLE Threads Gear Per Inch SCALE 1,3,5,7 1,3,5,7 1,3,5,7 1,3,5,7 1,3,5,7 1,3,5,7 1~8 indicates that any of the 8 lines may. Eight page PDF copy of the original manual for the 101. A single-spindle automatic lathe requires a bar puller or bar feeder to repetitively move the metal to be cut. 8 Lowest Range Value. Surface speed is measured. Instead of swapping change gears for each thread selection, merely refer to the thread chart and rotate the alpha and numeric dials on the quick change gearbox to make the thread change. Address: LeBlond Ltd. If the lathe is not powerful enough it will rip. This lathe has a custom metal table top made to fit the lathe, equipped with a hole for easy chip and cutting fluid cleaning. It is normally expressed in meters per minute (or feet per inch in British units). All Harvey Tool products are fully-supported with their own Speeds & Feeds designed to provide the best tool possible for various applications. A typical HSS composition is: 18% tungsten, 4% Chromium, 1% Vanadium, 0. Carbide Tipped Lathe Cutting Bits, 10 Pk. Lathe Machine. It takes multiple charts to cover maybe 3 or 4 dimensions. A shop made faceplate for a South Bend 9" lathe. com to determine the correct blade speed and blade tooth pitch based on the material you are cutting. 10" x 22" Benchtop Metal Lathe with DRO. Straw colored chips indicate that you are on the maximum edge of the cutting speed for your cutting conditions. Feeds and Speeds for End Milling using High Speed Steel* tooling. MRR = Metal Removal Rate ( Cubic Inches per Minute) L = Length of Cut. piece by hand before turning lathe on. cutting speed chart - Google Search. Variable-Speed Lathe This 8 in. If there is a single truth, it is that whether you have a large mill or a small micro machine, whether you use large cutters or little tiny things, cutting speed (rpm of the spindle) depends only on the material being cut, the diameter of the cutter, and the material from which the tool is made. All Drills and Drivers. The following are the lathe machine formula commonly used to calculate in turning operations: The cutting speed (v) of a tool is the speed at which the metal is removed by the tool from the workpiece. Perfect for thread cutting and suitable for a variety of other operations, this metal lathe has the ability to cut between 16 and 24 threads per inch in either direction. Too slow cutting speed - most beginers prefer to err on the slow side, but slow speed often results in poor finish. Such cutters are also often referred to by the set-phrase name of single-point cutting tool, as distinguished from other cutting tools such as a saw or water jet cutter. If you are *NEW* to running a drill press, mill or lathe,these are the essentials you need to know. Raise and lower frequently tor quicker cutting. Review the diagrams below to determine your spindle nose type. The larger the diameter, the slower you need to run the lathe. Then simply read off the r. 28900 LATHES TURNING NUMBERS 101. lathe provides a variety of rotating speeds and suitable manual and automatic controls for moving the cutting tool. South Bend Lathe Works was founded in 1906 by the O'Brien twin brothers after they graduated from Purdue University in Indiana. Cuts cleaner than traditional countersinks. Standard Equipment: Cast Iron Stand 150mm/6″ Faceplate 300mm /12″ Toolrest 2MT Live Center 2MT Spur Center. Select the spindle nose size for your chuck or adapter plate. The harder the material you are trying to cut, the longer it will take to cut it at a given speed. The cutting speed, expressed in FPM, must not be confused with the spindle speed of the lathe which is expressed in RPM. Metal Lathe Projects, Metal Lathe Tools, Metal Working Tools, Antique Woodworking Tools, Woodworking Machinery, Woodworking Shop, Grinding Machine, Milling Machine, Manual Lathe Ralph Djernes lathes 13+ Delicate Wood Working For Beginners Step By Step Ideas. Change Gear Setups Having recently been given a Speedway 7x12 mini-lathe for Christmas, I found myself wondering about cutting threads. 0 139 554 1386 2079 8. Chart #3 illustrates the different efficiencies for the various cutting lasers. We can also ship by sea , please just contact us if you need. Let's face it. A change from 6 to 46 meters per min (20 to 150 sfm) with carbide tools results in a temperature change from 427ºC to 927ºC (800ºF to 1700ºF). 51) in Appendix Adjust machine to correct speed for machining process Put work piece into chuck. So the speed for a specific part will change as the diameter decreases if you are removing much material. These include better and more capable machine tools and CNC processors that allow the machine to accurately cut at increasingly higher speeds and feeds. Ideal for deep holes and end-grain drilling Drill one side, flip material Over, place center bit in its hole, and resume cut. 5 To look for another thread go back to point 2. Featuring a precision ground, induction hardened bed, fully gear driven spindle with hardened and ground gears with a speed range of 75 - 1400rpm, selectable via the front of. Tool too high - a better finish will result if the tool is slightly low instead of slightly high. The Bolton Tools BP250V's overall dimensions are small, but what it lacks in size, it makes up with up in features. The harder the material you are trying to cut, the longer it will take to cut it at a given speed. Login to download WOOD DrillPressSpeedChart. Speed is another key factor for drilling metal. A speed up to 2,000 revolutions per minute ensures suitability for most applications, while a gear ratio threading chart helps determine which gear to use to achieve the desired results. SFM is based on the various properties of the given material. The hole through the spindle, horsepower, and other overall dimensions where the same as the Workshop model, and prices, in 1931, were. The general operations done with the lathe are grooving, turning, cutting, sanding and etc. in diameter and 18 in. Metal lath and hardware cloth can be cut with a tin snips, but there's an easier way. Description: Just like larger lathes, changing the thread selections is quick and easy on our M1099 10" x 26" Bench Lathe. FEATURES: A. IPM = Inches per Minute. To remain the accuracy of cutting tool, surface finish of workpiece, and increased tool life, use of cutting fluids started a century ago. There's also a chart showing the parts of a lathe (shows a Clausing lathe, not an Atlas) and a chart of decimal/fraction equivalents. To cut steel, you'll need to run the machine at a much slower speed -- about a hundred feet per minute. Revolutions Per Minute (RPM) – The spindle speed rate of the cutter. Select the spindle nose size for your chuck or adapter plate. They are also used for finishing to close tolerances, finishing to the smoothest surfaces, and cutting with the least work hardening. 6 mm - 10 mm 3000 1500 2000 1200 2500 1000. The general operations done with the lathe are grooving, turning, cutting, sanding and etc. This also includes Web Machinist mobile Pro. Save time and money by downloading and printing the Speeds and Feeds table for your specific tool, and simulate its running parameters and tool paths by accessing our complete library of simulation files. The lathes can be used to make simple objects as the plates. 0 243 970 2425 3638 5. There are 5 faces to consider at the cutting end, but only 3 of them require grinding. Cutting data formulae Turning Legend v c = Cutting speed (m/min) n = Spindle speed (rev/min) f = Feed per rev (mm/rev) a p = Axial depth of cut (mm) D = Workpiece diameter (mm) Q = Material removal rate (cm3/min) R a = Surface roughness (μm) re = Nose radius (mm) Milling Legend v c = Cutting speed (m/min) n = Spindle speed (rev/min) v f = Feed. It was the lathe that made possible the building of the steamboat, the locomotive, the electric motor, the. Drills and Drivers. A Baileigh metal lathe (a. v 1000 v = 12500 / 1000 = 18. 13" x 40" Gunsmithing Lathe with DRO. The operating speed for all metal cutting operations is based on the cutting tool material and the hardness of the material to be cut. Instead of swapping change gears for each thread selection, merely refer to the thread chart and. HSS tools have a harness of 62-64 Rc. Thread cutting in the Small Lathe. The following are the lathe machine formula commonly used to calculate in turning operations: The cutting speed (v) of a tool is the speed at which the metal is removed by the tool from the workpiece. F = Feed in Inches Per Minute. quantity: price: £16. SPINDLE SPEEDS: Compare the following speeds to your metal lathe: HLLC-A10 Atlas 10"/12" 28 45 70 112 83 134 211 345 164 266 418 685 500 805 1270 2072 HANDY LITTLE LATHE CHART - SPECIFICATIONS and USES Each chart is a FULL-COLOR DIGITAL PRINT on 11"x17" bright white paper. In general, round-shaped dies are for cutting threads onto a workpiece and hex-shaped dies are for chasing (cleaning up / repairing) existing threads. Lathe can be defined as a machine. Grizzly's machines are well-known for their quality and effectiveness and one of those is the Grizzly G8688 (7 by 12 inches). Look for the nearest diameter to the one you wish to cut, and move across to the workpiece material. cutting speed chart - Google Search. Cutting speeds for the "Slow-Speed Universal" edition provides 16 rounded spindle speeds, matching most older and/or larger metal lathes. This Teknatool one seems to be the easiest to follow. Feed rate and cutting speed determine the rate of material removal, power requirements, and surface finish. FEATURES: A. FIGURE 22—Turning speeds for high speed steel cutting tools. Read more about. Dial Indicator Micrometers:. Feeds and Speeds: The Definitive Guide (Updated for 2020) If you're serious about CNC, you NEED to optimize your Feeds and Speeds. Just as you'd expect with a larger, more-extensive lathes, changing the thread selections is quick and easy on our M1099 10" x 26" Benchtop Lathe with quick-change gearbox. Carriage Components; Headstock Components; Lathe Bed; Tailstock. Planing and Shaping : The tools used for planing and shaping are similar to lathe tools. 96F99444 & Higher). Summit Machine Tool, 518 N Indiana Ave Oklahoma City, OK 73106. This metal lathe combo is all you will need to get your home hobby shop started. Lubrication & Speed Charts for Atlas 6" Lathe: 1: from Guelph, Mark: 06/02/2015: 4510 Atlas 12" Metal Cutting Band Saw & 4602 Metal Cutting Attachment: 2. Slower speeds allow the cutting bit to work through the metal and is needed when turning hard to cut metals. This Elite geared head lathe consistently turns out high quality components. Cutting Speeds, feeds & Info Page 66 Parting Off in the Lathe (continued) This translates to about 200 RPM for 20mm (. Cutting speeds are usually given in feet or meters per minute and these speeds must be converted to spindle speeds, in revolutions per minute, to operate the machine. This is an attempt to try and explain in simple terms the tool design, terminology and the grinding process needed to create it. 02" Diameter, RPM Read Out, Tolerance test certificate, Test Chart Included-STAND SOLD SEPARATELY Are you looking for BOLTON TOOLS 10" x 22" High Precision Gear Head Variable Speed Metal Lathe. Using a high-speed steel drill bit the chips should never be turning brown or blue. From WOOD® Magazine. 006 copper alloy - tough 40-200* 200-500. In this process job is rotated against a tool. The final piece of the puzzle for laser processing is the cutting speed. Replace guard. The lathe handles workpieces up to 10 in. SUPER 7 CONNOISSEUR, Vari-Speed, belt driven, back geared, screw cutting, bench mounting, centre lathe - 89mm (3. High Speed Steel is a high carbon tool steel, containing a large dose of tungsten. Read more about Drills, Mills & Lathes Accessories. The cutting speed of a tool bit is defined as the number of feet of workpiece surface, measured at the circumference, that passes the tool bit in one minute. for threading chores. Diameters and rim speed The rpm of the spindle is sometimes the least important number for me. TURNING SPEEDS. Calculations use the desired cut diameter, cutting speed, and cutting feed, which should be chosen based on the specific cutting conditions, including the workpiece material and tool material. On the same website is a downloadable PDF on Fitting Lathe Chucks. Read more about. Shop Fox W1758 at $985. Because it is less brittle than carbide, high-speed steel might work well, although the cutting speeds in this case must be kept quite low, typically at 100 surface feet per minute or less as a starting point. PARTING ON THE LATHE. If there is a single truth, it is that whether you have a large mill or a small micro machine, whether you use large cutters or little tiny things, cutting speed (rpm of the spindle) depends only on the material being cut, the diameter of the cutter, and the material from which the tool is made. 005 125 150 Cast Iron, soft 0. Headstock: Contains gears and bearings that enable the machine to rotate at different speeds or revolutions per minute. speed-selection charts packaged with many lathes. For machining, the 3-gear cluster is made up of 25, 20 and 40-tooth gears with the 20 or 40-tooth used to drive the next gear. Approximate Material Cutting Speeds & Lathe Feed-Per-Revolution: Calculating RPM and Feed Rates Material Ballpark CS with High-Speed Tool Cutting Speed High-Speed Tool Cutting Speed Carbide Tool Feed/Rev HSS Tool Lathe* Feed/Rev Carbide Tool Lathe* SAE 1020 - Low Carbon Steel 100 80-120 300-400. 1-800-423-2567 The Mini Lathe ITEM 93799 VGA is occasionally on sell for as low as $329. Series Expansion – Blank Insert Added to the GY Series Grooving System and the GW Series Cutting Off and Grooving System July 24, 2019 Series Expansion – Cutter for Compact and Smaller Machining Centres Added to the FMAX High Feed Finish Milling Cutter Series. Milling Speed and Feed Calculator Determine the spindle speed (RPM) and feed rate (IPM) for a milling operation, as well as the cut time for a given cut length. This will give it a chance to slow and reach an optimum speed. BD-405 MINI LATHE BD-712 METAL LATHE Model BD-405 Swing over bed 110 mm Distance between centers 125 mm Hole through spindle 10 mm Tailstock screw M14x1 mm Variable speed 100-3800 ±10% rpm Cross slide travel 50 mm Motor output power 150 W Overall dimension (LxWxH) 440x270x210 mm Packing Size (LxWxH) 510x380x310 mm Weight (Net/Gross) 14/16 kg. Select the spindle nose size for your chuck or adapter plate. Determine the spindle speed for turning, milling, drilling, and reaming with these charts and cutting speed calculators. GEAR CHART FOR CUTTING IMPERIAL THREADS INDICATOR TABLE Threads Gear Per Inch SCALE 1,3,5,7 1,3,5,7 1,3,5,7 1,3,5,7 1,3,5,7 1,3,5,7 1~8 indicates that any of the 8 lines may. CARRIAGE (aka, SADDLE) Moves the tool post, cross slide toward or away from the chuck. 500 HSS cutter set your spindle speed from 458 to 688 rpm. For normal power feed on this lathe, it runs at 1/16 the speed of the spindle – so the tool marks left by a sharp tool under power feed, then, are kind of a shallow thread of 256tpi. From WOOD® Magazine. Large diameter stock must be turned at a very low speed. Stainless steels (300 & 400 series) 75–130. If the lathe is not powerful enough it will rip. Steel work 0. These include better and more capable machine tools and CNC processors that allow the machine to accurately cut at increasingly higher speeds and feeds. 7% carbon and the rest, Iron. here is a cutting speed chart (surface feet per minute chart) that shows. Stub ACME Thread Depth = Pitch x 0. inch METAL MODEL 101. Cutting speed is defined as the speed (usually in feet per minute) of a tool when it is cutting the work. Also Q&A Tumbler Reverse Variable Speed 9 x 20 Adds the ability to cut left hand threads Surplus treadmill dc motor & controller. RPM = SFM/ Dia. Calculate cutting speeds and feeds for end milling operations. It will cut most common threads, and the lowest spindle is a very handy 55 rpm, which makes thread cutting easy. Carbide Tipped Lathe Cutting Bits, 10 Pk. Operating Instructions and Parts List for Craftsman Six-Inch Turning Lathe Model Number 101. See cutting speed charts. Turning Speed Chart. Tachometer RPM MPM: The tachometer is used to accurately measure spindle RPM (Speed) of the lathe machines. Parameters are a starting point based on machinability rating at hardness listed. and stainless steel at medium to high cutting speeds. 005 125 150 Cast Iron, soft 0. Drill a Deep Hole on a Benchtop Drill Press. Lathe Machine was actually the first machine tool which came into being as a useful machine for metal cutting. When using a coolant in conjunction with the chip tray, On no. The term refers to the fact that the steels could be used as cutting tools at high turning speeds on a lathe. The chart is totally sealed for years of use and wipes clean with a soft cloth. Cutting speeds match the ATLAS & CRAFTSMAN metal lathes and are COLOR CODED for ease of use. Drill bit cutting speeds are very important in the drilling of metals. For the mini-lathe banjo and with the original gear set plus 21, 55, 57 and 65 teeth. Mini Lathe Tool Kit, 30 Pc. 12" x 36" Gear-Head, Cam Lock Spindle, Gap Bed Lathe. This 11" x 28" precision metal lathe is very high quality, and produces very solid work. Feel the lathe, not the turning bowl blank. Hard Metal Machining Embrace high speed hard metal. Cutting Speed and RPM on the Lathe and MillTom2014-12-30T20:59:27+00:00. and stainless steel at medium to high cutting speeds. here is a cutting speed chart (surface feet per minute chart) that shows. This is the chart we recommend for all South Bend 133323792422. To use the HANDY LITTLE LATHE CHART: 1. We're back at DeBolt Machine to compare turning 1018, 1045, 12L15 and 4140 steel on a 16" Lathe to learn about speeds & feed, lathe tooling, inserts, and surface finishes! ~~~~~ Links for this. High-speed steel tools should be used for interrupted cuts such as occur in the roughing of an uneven surface. 8) Move controls to set cutting speeds and depths and feed rates, and to position tools in relation to workpieces. See more ideas about Machine tools, Lathe and Metal working. Metal Lathe Tool Set, 5 Pc. Cutting speeds for the "Fast-Speed Universal" edition provides 16 rounded spindle speeds, matching most newer metal lathes and milling machines. Extensive testing has developed the tool-life data and tool life charts are available now available. One of the primary concerns of. Straw colored chips indicate that you are on the maximum edge of the cutting speed for your cutting conditions. Cutting speed is the relative speed at which the tool passes through the work material and removes metal. Lathe - parting off Parting is the process whereby a part that has been made, or is wanted for another operation, on the end of a bar is cut off from the rest of the bar, which is, usually, being held in the chuck. If you sense any sounds or vibrations, back the speed down a bit until the rotation is smooth. hension, application of safety devices, cutting/sanding/grinding tool integrity, and the usage of personal protective equipment. Always mention this Model Number when communicating with us regarding your lathe or when ordering parts. DRILL PRESS SPEED CHART Recommended operating speeds (RPM) Accessory Softwood (Pine) Hardwood (Hard Maple) Acrylic Brass Aluminum Steel Shop Notes Twist drill bits* 3000 3000 1500 750 3000 1500 750 500 2500 2000 1500 NR 3000 1200 750 400 3000 2500 1500 1000 3000 1000 600 350 Lubricate drill with oil when cutting steel 1/ 8" or thicker. Depending on the turning axis, lathes are available either in a vertical or horizontal construction. Lathe Tools Milling Machine Metal Working Charts Google Search Table Projects Metalworking Graph Of A Function. Mini Lathe Tool Kit, 30 Pc. At spindle speeds that take full advantage Of high speed carbide tools, or for hogging out a heavy cut, the Logan 12" Lathe produces precise results. item from hercus stock. 99 Regular Price $799. Turning : Milling Drilling & Reaming Top: Turning speeds are adjusted to the feed rate of the mini lathe (0. D = Depth of Cut. 4000 High Performance Rotary Tool. 008 zinc alloy - die cast 80-100 750-1500. Best bit for acrylic. hension, application of safety devices, cutting/sanding/grinding tool integrity, and the usage of personal protective equipment. Before discussing on this topic, first you should know about machining process. : AMABL250AV-Fx550 Distance between centers: 550mm Swing over bed: 250mm Swing over cross slide: 145mm Width of bed: 135mm Taper of spindle bore: MT4 Spindle bore: 26mm Number of spindle speeds: Variable Range of spindle speeds: 50~2500rpm Range of longitudinal feeds. 6 mm - 10 mm 3000 1500 2000 1200 2500 1000. Cutting speed is the relative speed at which the tool passes through the work material and removes metal. Factors affecting Cutting Speed: 1 Hardness (hardness) Soft material vs Hard. Lathe can be defined as a machine. A SKY-HIGH PARTNERSHIP. 5 388 1552 3882 5823 3. Product Overview. Polishing plates (fig 82) should be purchased with a two speed arrangement of 1725 and 3450 rpm, or a single speed motor can be adapted for two speeds by installing a two step pulley on the motor, and a single pulley on a polishing arbor. Indexable Mini Lathe Set, 5 Pc. The lathe is a machine tool used principally for shaping pieces of metal (and sometimes wood or other materials) by causing the workpiece to be held and rotated by the lathe while a tool bit is advanced into the work causing the cutting action. 035 SAE 1050 - High Carbon Steel. Whether you're looking for a small metal lathe or a large industrial lathe, we have a model that's right for you. Steel work 0. The cutting speed, expressed in FPM, must not be confused with the spindle speed of the lathe which is expressed in RPM. Indexable Lathe Parting Off Tool Holder 16 x 38 x 90mm. Feed rates are in. Find the diameter of the piece in the left column of the"SURFACE FEET PER MINUTE CUTTING SPEEDS" chart. As a starting point, in terms of cutting speed for Mild Steel, try 100 feet per minute, (surface speed ), using High Speed Steel tools. MT4 spindle hole gets more capacity. The best rule of thumb for proper cutting speed is the color of the chip when cutting steel. All Drills and Drivers. 001" per revolution of the spindle. The lathes can be used to make simple objects as the plates. More power/torque than any competitive 18″ lathe Incredible Variable Speed Range – 100 RPM – 5,000 RPM 8 Favorite Speeds Electronic Auto Braking Speed Selection Chart 8 Favorite Speed Settings. Set up, operate, or tend lathe and turning machines to turn, bore, thread, form, or face metal or plastic materials, such as wire, rod, or bar stock. 008 zinc alloy - die cast 80-100 750-1500. High cutting forces: Use more positive chipbreaker: Low cutting speed: Increase speed: PROBLEM: CAUSES: SOLUTIONS: POOR INSERT LIFE - Chipping: Chatter, vibration: Use sharp inserts: Select more positive chipbreakers: Increase feed rate: Increase lead angle: Use smaller nose radius tools: Built-up edge: Increase speed, use PVD coated grade, use coolant. Feed rate and cutting speed determine the rate of material removal, power requirements, and surface finish. 18 DISC MILL CUTTERS. Leaded steel 12L14 : 275-325. I just want to be clear there. GEAR CHART FOR CUTTING IMPERIAL THREADS INDICATOR TABLE Threads Gear Per Inch SCALE 1,3,5,7 1,3,5,7 1,3,5,7 1,3,5,7 1,3,5,7 1,3,5,7 1~8 indicates that any of the 8 lines may. They give you ranges that are tough to interpret when you just want the answer. The cutting speeds are in a length per unit time (feet per minute) and your lathe speed is measured in rotations per unit time (RPM). your tool was a flat piece of metal slid against the workpiece. It's a two-directional lathe with excellent variable speed control from 100RPM up to 2500 RPM in either direction. Higher speeds will put a light polish on the metal and also cut a groove quickly with very little pressure. There are many situations where this speed range is way too high for safety. Add to Wish List Add to Compare. Approximately 80% of the time while the program is running the laser is cutting, this is the majority of the processing time. Select desired feed rate in. South Bend Lathe Works was founded in 1906 by the O'Brien twin brothers after they graduated from Purdue University in Indiana. Metal cutting milling speeds for different materials. Steel work 0. Select the spindle nose size for your chuck or adapter plate. Lathe Cutting Speeds in Feet and Meters per Minute Using High-Speed Steel Toolbit Turning and Boring Rough Cut Finish Cut Material Tool steel Cast iron Bronze Machine steel 70 60 90 21 18 90 27 90 80 27 100 27 24 100 Threading 30 30 25 30 35 9 8 25 8 11 ft/min m/min ft/min m/min ft/min m/min. Indexing with change gears. Bolton Tools B290VG 11" x 28" High Precision Variable Speed Metal Lathe - Metal Lathes $2,430. Look for the nearest diameter to the one you wish to cut, and move across to the workpiece material. Indexed End Mill - Endmills with replaceable cutting edges and steel bodies. Recommended RPM for the Lathe* Depth of Cut for the Lathe Feed Rate for the Clausing Lathe Feed Rate for the Harrison Lathe *Knurling & parting tools are run at 100 RPM maximum *Do not exceed 1200 RPM on the 3 jaw chuck 0 200 400 600 800 1000 1200 1400 1600 0 1/2 1 1 1/2 2 2 1/2 3 3 1/2 RPM Piece Diameter (in) Aluminum Steel. CS= recommended cutting speed. When the cutting speed (surface feet per min or meters per min) is too high or the feedrate (feed per revolution) is too low, the cut can become unstable and begin to resonate, leaving a chattered surface finish. The variable speed Sherline motor is a great upgrade. Read more about Drills, Mills & Lathes Accessories. Machines by either Messrs. Number of Pages: 40 This is a reproduction, not a photocopy, of an original Unimat Miniature Machine Techniques Handbook and Operator’s Manual. Speeds available with the 12x36 Atlas Lathe The goal in setting the spindle speed is to obtain a desired cutting rate for a given material. min for ally assuming HSS tooling though I very rarely use HSS aside from screw cutting or turning PTFE. This enables tools to cut at a dull red heat (up to 1000° F) without loss of hardness or rapid dulling of cutting edge. Cuts cleaner than traditional countersinks. Published on Sep 3, 2017. On the other hand, a decrease in RPM of only 29% will cut the CF in half, such as reducing the speed from 1,000 down to 707 RPM. A chart is only 2 dimensional. Cutting speed recommendations. 5 To look for another thread go back to point 2. com - id: 83e1f0-ZGY0Y. It will give a nice, clean cut, and the cut will proceed along at a very acceptable rate. Each precise, durable metal lathe from Baileigh will hold exacting tolerances for years. The effective utilization of the machine tool, cutting tools, tool holders, and programming. F = Feed in Inches Per Minute. or mm/min. To make a selection, simply rotate the dial to the corresponding number displayed on the threading or feed charts. Always use the lowest speed to rough out the stock prior to final machining. in mature per minute. Cutting speed is measured in Meters per minute. Usually there is a chart on the front of the lathe to tell you what RPM you will get from the different step pulley arrangements. The oversize ball bearing spindle provides sustained accuracy through its range of 16 speeds, from 38 to 1260 rpm. The cutting speed of a tool bit is defined as the number of feet of workpiece surface, measured at the circumference, that passes the tool bit in one minute. Shop Fox W1758 at $985. Klutch 49656 at $689. THREAD CUTTING ON THE LATHE The beauty of a lathe when you compare it to other tools is in its great versatility. S A F E T Y For Machines Mfg. think of the SFM value as the temperature that the RPM will be producing. Speed is indicated on speed indicator dial next to speed change hand wheel. Calculate Cutting Speed from Dia of job to be turned and Revolution of job. Cutting fluid includes lubricants and coolants. Just as you'd expect with a larger, more-extensive lathes, changing the thread selections is quick and easy on our M1099 10" x 26" Benchtop Lathe with quick-change gearbox. if anyone wants to operate the lathe machine then he must first know about the feeds, cutting speed, depth of the cut and usage of tool should be considered. We're back at DeBolt Machine to compare turning 1018, 1045, 12L15 and 4140 steel on a 16" Lathe to learn about speeds & feed, lathe tooling, inserts, and surface finishes! ~~~~~ Links for this. CS= recommended cutting speed. We're back at DeBolt Machine to compare turning 1018, 1045, 12L15 and 4140 steel on a 16" Lathe to learn about speeds & feed, lathe tooling, inserts, and surface finishes! ~~~~~ Links for this. TOOL BIT SET HSS FOR MEDIUM LATHE 1/2 SQUARE BY 4 LONG. The term “high-speed” was used when these steels were first invented. Failure to heed the following tips can result in destroyed parting tools, ejection of the part from the spindle, and permanent damage to the X-axis power feed on the lathe, so when practicing, pay very close attention to what you are doing and have Mike. The B290VG metal lathe is the perfect lathe equipped with a large capacity bore, variable speed and tight tolerances all wrapped into a compact tool. Such cutters are also often referred to by the set-phrase name of single-point cutting tool, as distinguished from other cutting tools such as a saw or water jet cutter. A quick change toolpost for the Atlas Lathe. 006 copper alloy - tough 40-200* 200-500. This quality lathe features a high torque variable speed motor (3,000–7,000rpm). Do not use the reference number off of the diagram. Determine the spindle speed for turning, milling, drilling, and reaming with these charts and cutting speed calculators. C (m/min) C (ft/min) High speed steel: Non-steel work 0. 320 = a constant for this calculation. Cutting speed is the speed at the outside edge of the tool as it is cutting. The round-nose cutting tool bit is used for most basic cutting and finishing and is the most widely used of all metal lathe tools. To use the HANDY LITTLE LATHE CHART: 1. DRILL PRESS SPEED CHART Recommended operating speeds (RPM) Accessory Softwood (Pine) Hardwood (Hard Maple) Acrylic Brass Aluminum Steel Shop Notes Twist drill bits* 3000 3000 1500 750 3000 1500 750 500 2500 2000 1500 NR 3000 1200 750 400 3000 2500 1500 1000 3000 1000 600 350 Lubricate drill with oil when cutting steel 1/ 8" or thicker. which include milling machines. Mini Metal Lathe, Mini Metal Lathe Machine, Mini Metal Turning Lathe manufacturer / supplier in China, offering Mini Metal Lathe Machine (JY280 Mini Metal Turning Lathe), Cylindrical Grinding Machine (M1332B X1500) Cylindrical Grinder Machine, External Grinding Machine (M1332B X2000) External Grinder Machine and so on. Metal Lathes: List: A0394: Clausing 14" x 42" Variable Speed Turret Lathe, Model 6913, 9" 3 Jaw, 8" 4 Jaw, 8" Faceplate, Taper Attachment, L00 Spindle Taper, 1-3/8" Spindle Hole, 1-1/2" Tailstock Bore, 3 HP 3 Phase 220/440 Volts $3,995. Recommended RPM for the Lathe* Depth of Cut for the Lathe Feed Rate for the Clausing Lathe Feed Rate for the Harrison Lathe *Knurling & parting tools are run at 100 RPM maximum *Do not exceed 1200 RPM on the 3 jaw chuck 0 200 400 600 800 1000 1200 1400 1600 0 1/2 1 1 1/2 2 2 1/2 3 3 1/2 RPM Piece Diameter (in) Aluminum Steel. Address: LeBlond Ltd. by Anytime Tools. Very nice to weld with good flow and strength. Such cutters are also often referred to by the set-phrase name of single-point cutting tool, as distinguished from other cutting tools such as a saw or water jet cutter. This is a safety feature for unauthorized use of the tool. Following a number of requests, this page details the grinding of a general purpose lathe tool. M2 High Speed Steel Mini Lathe Bits for Metalworking 5 Pc Lathe Bits Set, 6 Pc. Look, listen, and feel. D = diameter of workpiece in inches. Cutting Speed. Drill bit cutting speed. Also Q&A Tumbler Reverse Variable Speed 9 x 20 Adds the ability to cut left hand threads Surplus treadmill dc motor & controller. Smallest of the metal-turning machine in the Company's range, the 10-inch (illustrated below) was available with either 24" or 36" between centres and fitted with a mechanical, infinitely-variable speed drive, driven by Rockwell's own 0. NEVER REVERSE MOTOR DIRECTION while the lathe is running. rockrivertool. Approximately 80% of the time while the program is running the laser is cutting, this is the majority of the processing time. To cut a 32tpi thread, it must turn at half the speed. Types of Lathes. In-Store Only Add to My List. Machines by either Messrs. The B290VG metal lathe is the perfect lathe equipped with a large capacity bore, variable speed and tight tolerances all wrapped into a compact tool. LATHE TOOL BITS BRAZED CARBIDE SET 6 pieces. A chart is only 2 dimensional. Much of the success in metal cutting depends upon the choice of cutting speeds. A metal cutting machine used to create cylindrical workpieces by rotating a workpiece against a stationary cutting tool The blank is located at the upper-left side of the engine lathe Headstock. New listing Viceroy boxford myford lathe Screw pitch gauge for thread cutting. It is expressed in meter/min. for threading chores. ), a depth of cut of 0. All of this can have a profound effect on the cut if your machine is equipped with such options, but the normal cutting speed formulas say absolutely nothing about the effect of coolant. It's a two-directional lathe with excellent variable speed control from 100RPM up to 2500 RPM in either direction. CRAFTSMAN SIX-INCH METAL CUTTING BENCH LATHE. If the chart above specifies a higher RPM than your machine is capable of, it should not cause a problem to run at a lower RPM. It's time to turn some heads with some turned woodworking projects. This lesson discusses how to determine the proper cutting speed for various metals and how to convert that cutting speed to the correct rpm for the tool or part. The term refers to the fact that the steels could be used as cutting tools at high turning speeds on a lathe. TCM = Time Cutting in Minutes. CS= recommended cutting speed. Choose a blade with 20 to 24 TPI (teeth per inch) for thin metal, 10 to 18 TPI for medium-thickness metal, and about 8 TPI for thick metal. When you multiply the diameter of the wood in inches by the RPM of the lathe the number should be between 6000 and 9000. Speed chart. I just want to be clear there. We're back at DeBolt Machine to compare turning 1018, 1045, 12L15 and 4140 steel on a 16" Lathe to learn about speeds & feed, lathe tooling, inserts, and surface finishes! ~~~~~ Links for this. Cutting Fluids; Drilling & Hole making; Electrical Discharge Machining (EDM) Introduction to Machining & Machine Tools; Lathes 101. 4300 Variable Speed Rotary Tool. Lathe - Image and Names of Parts Lathe Machine Machining Education Page Machining Performance Guides - Standards Machining Process Modeling/Sheet Metal Forming Machining Symbols Manufacturing Education Page - Milling, Turning, Drilling Marking Out, Measurement Fitting and Assembly Mechanisms and Mechanical Devices Online Book Metal Cutting Process. The machining of material is highly dependable on chips. metal working lathe metal working lathe tools metal lathe cutting speed chart. More Drills and Drivers. 0 323 1294 3234 4851 3. Metric threads on a South Bend 9C lathe without buying a transposing gear. Calculations use the desired cut diameter, cutting speed, and cutting feed, which should be chosen based on the specific cutting conditions, including the workpiece material and tool material. This metal lathe combo is all you will need to get your home hobby shop started. 0 162 647 1617 2426 7. Ideal Spindle Power Actual Spindle Power Spindle Speed Range (rpm) 18 inch VS Lathe Actual Spindle Power 15 Ideal Spindle Power • State-of-the-art AC Spindle Drive features surface mount technology to give compact size and high reliability • Interlocked end guard door for easy access for maintenance and changing end train gears • Faster thread cutting - reversal of the leadscrew with the spindle running at low speed • An easy-to-read index plate makes it. With too slow a cutting speed, time will be lost for the machining operation, resulting in low production rates.