Keyway Depth (Normally 1/2 of width) Total Height (X) = Depth (Y) = Metric Calculator Bore Size. Much more METRIC info is always being added to this site. 8 out of 5 stars 5. [July 2023]•Material : 1045 Carbon Steel or Equivalent, 304 Stainless Steel, Stainless Steel, Steel•Shape : Shape A, Shape B For complete product overview a Read more. 00. Made of chemical-resistant 18-8 stainless steel, these metric screws have an extra-soft nylon tip that reduces the noise, vibration, and damage that can occur from metal-on-metal contact. A rectangular key is generally used for shaft diameter between 1” (25 mm) and 20” (500 mm) Generally, these have a reduced effect on the shaft due to its shallow keyway depth. Metric or inch keyways can be selected with the modification symbol. BS 46 Part 1 : 1958 Square Keys and keyway Dimensions. BS 46 Rectangular Taper & Gib Head KeyWay & Key Dimensions Ref Standard . The keyway dimensions are also different from the English. 542. This coupling comes completely apart to allow the most convenient assembly and adjustment. 8mm 3. Canada also uses imperial measurements in some circumstances, though officially, the correct unit of measurement in Canada is the metric system, which. Referencing Figure 1, the Metric key size is W x T. This standard incorporates a small portion of the numerous variations of shaft/bore fits. thck Nom Free Normal Close/Int - - - -. ISO 3117, Tangential keys and keyways; ISO 4200, Plain end steel tubes, welded and seamless ? General tables of dimensions and masses per unit length; ISO 5753, Rolling bearings ? Radial internal clearance. $14. ANSI Woodruff Keys. Added on. C +0. ANSI b17. 19-1997 ; Keyway Stresses for Non-metallic Gears and Shafts Formulas and Calculator; Shaft (Arbor) Keyway Dimensionl Data - ANSI/ASME B94. The parallel keyway milling process starts by cutting a simple keyway slot, all the way through the axial diameter of the part. Keyway Dimensions. RoyMech Resources Keyways Taper Square Metric Key and Keyway Dimensions These Pages include various standards. AUTOMATION & IIOT. The robust. Metric Key Keyway Dimensions. Taper KeyWay and Key Dimensions : Mechanics : 3 searchable steel databases (free) Home / Metric Keyways Index Taper KeyWay and Key Dimensions. 00mm; 4. Keyway dimensionsMetric key keyway dimensions per iso/rtt3 js9 width Inch keyway chart ansi agma shaft key width b4 dimensions diameter nominal reference motor electricKeys keyway metric standard keyways sizes engineering shaft key parallel square fit fits mechanical data rectangular british limits figure. Woodruff Keys. ANSI woodruff size charts express measurements in inches and nominal key sizes with higher numbers corresponding to bigger keys. Retention elements such as Splines, flexible couplings, tapered joints etc are also used. Detailed width tolerance information is best drawn from the manufacturer. com. $ 29. Available applications include Keyways in Tapered Bore. See dimensions W and h in Figure 1. XXXX Rectangular Keyways. Keyway Width. d. 64. Square Keyways. Flat and parallel feather keyways are used for 1/4” to 2-1/2” diameter shafts while delivering the same torque capacity as square and rectangular parallel keys. 401/2A Set, but for sixteenth. RDG Tools was started up by Richard Dickinson in 1992. keyway (bs 4235 - part i) Description. The following standard containprovisions which, through reference in this text, constitute provisions of s this American National Standard. Eliminates need for complete shaft replacement. D. The keyway dimensions are also different from the English system. Marlco keyway broaching guides litecut metric to suit L0M broach. The key prevents relative rotation between the two. This standard incorporates a small portion of the numerous variations of shaft/bore fits. Metric woodruff keys are supplied to din 6888 / iso 3912 in c45k keyKeyway hallite Keyway chartShaft keys. Machine keyway to recommended size and tolerance listed per Table 4 on Page 3. Use them on soft surfaces such as. metric bores with inch keyways; metric bores with metric keyways; or; shaft keyseat tolerances. 42Rounded keys fill oval keyways completely, reducing stress on the key and shaft. Rachel Ingram. Metric Key & Keyway Dimensions Per ISO/R773 – Js9 Width Tolerance « + Keyways will be furnished per ISO/R773 and Js9 width tolerance unless otherwise specified. 4mm. Woodruff Keys. Total Height (X) = Depth (Y) =. All keyways are cut to ANSI standards. The most common keyway combinations for large keyways and bores. Item Weight. 2180 Corporate Lane, Suite 104 ~ Naperville, IL 60563 USA Phone (630) 596-9000 Fax (630) 596-9002 Keyway AGMA 9002-A86 Inch Bore and ANSI B17. Daemar’s Keystock are removable bars that are used to transmit torque from components including couplings, sheaves, sprockets and gears to a shaft. Metric Stainless Steel Nylon-Tip Set Screws. 0625 605671. And the dimension is added from the bottom of the keyway to the bottom perimeter of. For technical drawings and 3-D models, click on a part. • Keys DIN 6885 → Page 842. DESCRIPTION: Individual Keyway Broach. Here, you can find detailed information about these machine elements. Typically used manually with an arbor press or hydraulic press to produce the keyways. Keyways (Metric) Results 1-6 of 6 < Previous Page 1 Next Page > Results per page: Name. Machine keys are used in power transmission to transmit torque between a shaft and a shaft mounted component such as a gear, pulley, or coupling. Hss No. keyways available upon request. 4235 : PART 1 : 1972. 774. The hub keyway is dimensioned by its width and depth on the shaft – keyway sides. D. 0005. 1 “Keys and Keyseats”. Install these keys in a drilled and reamed hole to locate fixtures and vises on your machine table. 824. Size is clearly marked on each piece. 0mm to 26. Metric Spur Gears - One Type of Cylindrical Gears. Metric. Is there a standard for setscrew (grubscrew) over keyways for metric. Steel C45 (EN8) Special sizes of Keysteel and Parallel Keys can be supplied. applications. scope: This Standard covers requirements for square and rectangular parallel keys and keyways intended for both alignment of shafts and hubs, and transmitting torque between shafts and hubs. In stock and ready to ship. 6 0. ), keyways and installed set screws. Rapid Design. The standard dimensioning of the keyway is like above. l. Distributor of keyway broaches made from high speed steel material. 125 to maybe . keyways /keys dimension in accordance with BS 4235-1:1972: Specification for metric keys and keyways - Parallel and taper keys. The bore diameters listed in the "Keyway Additional Modification Applicable Bore List" in the table below are available for the service. Install these keys in a drilled and reamed hole to locate fixtures and vises on your machine table. Made of solid carbide, these keyseat cutters are harder, stronger, and more wear resistant than high-speed steel for the longest life and best finish on hard material. See ANSI/AGMA 9112-B14 for metric bores with metric keyways. Keyed two-piece split collars giving users flexibility to assemble the collar in-place without the need to remove adjacent components. 50mm x 50mm ; 75mm x 75mm ; 100mm x 100mm ; 125mm x 125mm ; Plastic Color Coded Slotted Shim. Standard Keyways: (Used on all of our shafting) “Plain” Shafting available on all Steel grades. Value Collection. The rounded ends make it easy to slide gears, hubs, and other components into place. 25, 2 x 0. These fits andThis item: Accusize Industrial Tools No. AUTOMATION & IIOT. This shafting is true and straight and needs no turning, but if keyways are cut in the shaft, it must usually be straightened afterwards, as the cutting of the keyways relieves the. 0470 605670 6 C 0. Standard Bore and Keyway Tolerances (Inch and mm) Keyway Bore (inches) Reference Height (d) 1. . Pds Fire Door Slow. Max. Unless otherwise specified, the shaft keyway is assumed to be standard. The cutting edges increase until they reach the required size. Gabriele Panella. 0mm to 26. Company. 00. Keyway Width. Woodruff keys and keywaysBS 3170:1972. Keyed double wide collars can be used as short rigid couplings in space constrained applications and benefit from increased torque capacity from the keyway. Standard Metric Keys & Keyways for Metric Bores with One Key • Couplings All Types (Page 1 of 2) Metric Key & Keyway Dimensions Per ISO/R773 – Js9 Width Tolerance Key & Keyway Dimensions – Millimeters Falk Coupling Hub Keyway Dimensions – Inches Shaft Diameter “D” Key Size Nominal Keyway Width Hub “W”. Keyway metric dimensions key iso tolerance js9 r773 width per depth hub t2 height radius text mill question answered hasnSolved 5. 1-1967, ASME standard B17. zzz. 16 0. (Dimensions comply with DIN 6885/1) †† Requires use of chamfered keys. Keyways (Metric) Contributed by. Brass key stock is corrosion resistant and nonmagnetic. js9 widthTaper keys. Metric keyway chart printableAccounting for the keyways in the shaft where the. Roymech resources keyways parallel metric keys and keyway dimensions these pages include various standards. This key stock is undersized, so keys will fit slightly more loosely than standard keys and are best for inconsistent keyways. Get it as soon as Tuesday, Sep 12. These keys have a rounded shape that makes them easy to remove when parts need to be taken apart frequently, such as for maintenance or prototyping. Design of Standard Metric Keyways for Square and Rectangular Parallel Keys. The dimensions and tolerances of interference fit keys shall be given in Table 10 and Table 11. All keyways are accurately machined and straight with no bowing or twisting. Check Details. depth tol. 0005mm). Metric keyways are dimensioned by width and depth as measured from the radius of the Shaft to the center of the Keyway. Referencing Figure 1, the keyway dimension is W x T 1. 18 £466. Use it when parts need to be taken apart frequently, such as. Lubricate the assembly by applying lubricant to the key and keyway to ensure smooth operation. At the. Unless otherwise specified, the shaft keyway is assumed to be standard. 22 Piece Keyway Broach Kit Metric Size Metalworking Tool Bushing Spacer Set Bushing Metric Size 4mm B1, 5mmB1, 6mm C, 8mmC Broach with Tool Box, 13 Piece Bushing and 5 Piece Spacer Metalworking Tool. Stafford Metric Rigid Shaft Couplings are fully metric in all specifications, including the clamping screws. 1 Ansi Standard Keyway Sizes Pdf Thank you very much for reading Ansi Standard Keyway Sizes Pdf. At the time of PFEIFER INDUSTRIES, LLC. Since they fit more loosely than standard keys, these undersized keys are best for uneven keyways or when you. Specification for metric keys and keyways – Parallel and taper keys BS 4235-1:1972; Matching the woodruff key to the shaft diameter is also specified in DIN 6888 Keyway. , New Berlin, WI 53151-7953 March 2015 (PDF. The key prevents relative rotation between the two parts and may enable torque transmission. HSS Metric Keyway Cutting Broach Set Keyway Broach Mill . Shaft Diameter : Keyway (Shaft : Keyway (Hub) Radius r : D: Width:Square Steel, Metric. Currently unavailable. 2 The standard does not deal with misalignment or offset greater than can be accommodated withinMetric square keys assortment (m4 thru m8)Keyway metric Standard metric keys keyways for metric bores with one keySquare metric keys assortment thru m8 m4 hillman. Metric key keyway dimensions per iso/r773. Refer to tabulated dimensions and tolerances of metric keyways for parallel keys and woodruff keys as per BS 4235-1:1972. Gear Products and Suppliers | Gear Knowledge Menu. 70 Metric Hss Keyway Broach Set, 4 mm, 5 mm, 6 mm and 8 mm Keyway Size, Style B and C, 5100-0070 . They have an alternating right- and left-hand tooth style for removing more material at high speeds than straight-tooth keyseat cutters. Keyways. 5 +. Keyway Chart The following tables show standard dimensions for keys and their grooves. Thickness. Broaches, bushings, and shims that are used together should have the same style designation (usually indicated by a letter or a letter and a number) to ensure a. 1875″ Diam, 3/8″ LOC, 2 Flute High Speed Steel Keyway End Mill Spiral Flute, Uncoated, 3/8″ Shank Diam, 2-5/16″ OAL, 30° Helix, Centercutting List Pricetolerances and fits for metric bores and keyways. In the English and American system, the keyway in the hub is dimensioned by the width and the depth at the side, but in the metric system the keyway is dimensioned by the width and the depth measured from the raduis of the shaft to the center of the keyway. WDS 6024. KeyWay /Key Dimensions. Also, T1 and T2 are. The 3/8 inch and 1/2 inch joints come with set screws Features: Set Screws, Corrosion Resistant, Sanitary ApplicationStock Tool Holders for Inch and Metric Keyway and Slotting Inserts. +Shaft Arbor and Keyseat Dimensional Data American National Standard Keys and Keyways; Standard Metric Keys Keyways for Metric Bores with One Key; Keyway Cutter Hole Keyway Dimensional Data for MIlling Centers and Arbors - ANSI/ASME B94. Cross-section of a parallel keyed joint. 1. Shims for Keyway Broaches. Referencing Figure 1, the Metric key size is W x T. Type 309. B18. h. Metric Key & Keyway Dimensions Per ISO/R773 – D10 Width Tolerance ‡ Key & Keyway Dimensions – Millimeters Coupling Hub Keyway Dimensions – InchesB +0. 2 continued. Keyway. 80 Metric Keyway Broach Set In Box With Shims And Bushings,Keyway Broach Set,Metric Keyway Broach,Broach Set With Shim from Broach Supplier or Manufacturer-Chongqing Yuqing Machine Tools Co. Share Share this awesome question with your friends. Key (engineering) In mechanical engineering, a key is a machine element used to connect a rotating machine element to a shaft. Width. Note: Broaches have a. A radius transition between the floor and wall increases the component’s durability, preventing cracks from stress peaks. 82. Woodruff Keys are an alternative to Parallel Keys. Surface Finish Sides and. Stay organized and be prepared with these popular sets. Standard External Metric Thread and Fastener Sizes M 0. 00. Dia Width b Depth. 19-1997; Design of Square Key and Keyway (Wood Ruff) Stress, Shear and Torque; Parallel Key. D1-Style Broach for 10 mm Wd. Keyway broaches, keyseating broaches, keyway broach shims, and keyway broach bushings are used to machine keyways, splines, and other irregular shapes into a hole in metalworking tasks. 25 - M 1. 1. Parallel and taper keys; Part 2 Specification for metric keys and keyways. Linguette - sedi per alberi. all dimensions in inches. Cart Assmble. Metric Woodruff Key and Keyway Dimensions and Tolerances (all dimensions in millimetres) in accordance with BS 4235-2:1977 and ISO 3912-1977 b x h 1 x D Width b Depth Radius R Nom Tolerance Class Shaft t 1 Hub t 2 Normal Close Shaft Hub Shaft & Hub P6 Nom Tol Nom Tol Max min N9 Js9 1. Keyway (Hub) Radius r. All Types (Page 1 of 2) ++ Keyways will be furnished per ISO/R773 and Js9 width tolerance unless otherwise specified. Metric keyways are dimensioned by width and depth as measured from the radius of the. All keyed Shafting is guaranteed to fit on a bearing, and the ends can be chamfered for. The resulting margins of safety (FofS-1)relate very closely to my Factors of safety. BS ISO 4156:2005_1: Straight cylindrical involute splines. A rectangular key is generally used for shaft diameter between 1” (25 mm) and 20” (500 mm) Generally, these have a reduced effect on the shaft due to its shallow keyway depth. Keyway key metric dimensions iso shaft tolerance js9 r773 per standard t2 width sizes question shafts hasn answered yet beenSee ANSI/AGMA 9112-B14 for metric bores with metric keyways. Specification. Metric Key & Keyway Dimensions Per ISO/R773 – D10 Width Tolerance ‡. Choose from our selection of metric. Rexnord Industries, LLC, Coupling Group 427-108 5555 S. One of the following methods should be used to specify keyways: Metric: WxH Key W x T2 Keyway British. Using the G9774 18-Piece HSS Keyway Broach Set is the quickest and easiest way to produce a keyway. Zinc-plated keys resist corrosion in wet environments. PRECISION 12940 at. Unless otherwise specified, the shaft keyway is assumed to be standard. Accusize Industrial Tools No. Quantities of each thickness. 1, the Metric key size is W x T. Cut precision keyways. 10-24. A square key is used if the deeper key depth is required to transmit torque. A rounded bottom allows these keys to rock in their seat to relieve stress on the shaft caused by vibration or misalignment. When broaching in multiple passes, shims are necessary to ensure full keyway depth. Design of Standard Metric Keyways for Square and Rectangular Parallel Keys. TruKey® Shafting from Keystone is designed to provide the straightest, most accurate keyed shafting, in the industry. 1 Options Available. Woodruff Key Assortments. The deviations are less than the basic size. INTRODUCTION — The general practice in industry is to supply coupling hubs without fillet radii in the keyway corners to permit the use of standard commercial keys instead of keys with chamfered. 25. British Standard :BS 46 Part 1 : 1958 Keys and keyways and taper pins. 015. Metric key keyway dimensions per iso/rtt3 js9 widthStandard and metric keyway broaches Gates belts, hoses, and applications:. 2M - Woodruff Keys and Keyways. pdf Key sizeKeyway metric key iso dimensions standard keyways r773 keys pdf bores shaft hub depth diameter standards engineering table edge width. 3mm 3. Factors. KBC #70 METRIC KEYWAY BROACH SET. Keyway metric key iso dimensions standard keyways keys r773. Shallow keyway depths must exceed 2/3 of the full keyway depth of the square keys shown above. Keys and keyways. pdf Gates belts, hoses, and applications: standard & non-standard shaft keyMetric keyway. Recommended Hub Keyway Dimensions (mm) Reference AGMA 9112-A04 Standard metric keyway width tolerance per Js9 Imperial Standard Bore and Keyway Info Recommended Bore Tolerance for Imperial Shafts (Inches) Nominal Shaft Range Shaft Tol. 1) The tolerance zone for hub keyway width b for parallel keys with normal fit is ISO JS9 and with close fit ISO P9. Added on. $415. 0284, email us, or fill out and submit our online request for quote form. keyway depth to be determined by journal diameter & width specified per ansi b17. See dimensions W and h in Figure 1. Solved question 5: you have been tasked with designing aShaft keys types key chart square designs Metric machine keysParallel dimensions metric keyway key keys 1972. 5 times the shaft diameter to ensure a good load distribution over the entire key. They are designed to connect two dissimilar sized shafts in virtually any combination up to a 50 more. Keyway slot key shaft keyways internal external suitably drill milling produce sized required access form machine fitShaft coupling shaft hole additional modification service Keyed shafting keyway pinitKeyway shaft keyways metric bores mechanical wxh shapes. Metric Woodruff Keys are semicircular keyways used to lock rotating elements onto shafts. New: Width 25 mm added. 10" Width ;Metric Keyway Broaches (High Speed Steel) About RDG Tools. Mill specific holes or keyways in the hub to meet your specifications or weld in place. 3 Preferred length and weight of keys Preferred length and weight of keys is given in Table 4. D1-Style Broach for 10 mm Wd. The dimension from the top of the keyway to the opposite bore side, “T-dim”, is calculated from (refer to ANSI/AGMA 9002-B04) the following: T = bore + (h kw -. Also known as sine keys. Description: KEYWAY BALL NUTS Rockford Ball Screw stocks over 60 ball nut models including standard ball, preloaded, metric, freewheeling and custom. Shaft bushing boreMetric hex key wrench sizes wrenches 36mm 7mm bloomertool Metric keyway tolerance chartG. Type. 2 Keyways Dimensions for keyways are given in Table 3. 00RoyMech Resources Keyways Taper Metric Key and Keyway Dimensions These Pages include various standards. Use as is to make shaft larger. Moorland Rd. Woodruff Keys fit into a rounded slot cut into a shaft and a pulley or sprocket that has a slot cut into it is installed onto the shaft the slot slides over the woodruff key, creating an assembly that rotates as one unit. The keyway dimensions are also different from the English system. Each tooth’s cutting edge is a few thousandths of an inch larger than the one before. Ann from the top of the shaft, the keyway is shown. - Series EL couplings supplied with Metric. KenCut™ KS • F3AU • Radiused • 3 Flutes • Plain Shank • Metric KenCut™ KS Solid Carbide End Mill for Keyway Milling. Metric Broach Shims Broach Size Shim Thickness (Inch) Code 3 A 0. 45. They come in fractional or metric varieties (inch or millimeter), offering varying cut lengths. The keyways are dimensioned for use with a stock key class 2 in order to get a tight fit combination. Use the keyways with machine keys to transmit torque to gears, sprockets, and other keyed components. Their rounded ends also make it easy to slide gears, hubs, and other components into place. Print Menu. For example, an ANSI 202 measures 1/16 x 1/4, while ANSI 1012 measures 5/16 x 1. Single point and one pass keyway broaches are provided. The circular segment can be cut directly by plunge cutting with a circular Woodruff cutter without any reliefs. Choose from our selection of arbor shims, including ring shims, shims for keyed shafts, and more. Standard Metric Keys & Keyways for Metric Bores with One Key • Couplings All Types (Page 1 of 2). You may also refer detailed information on British Standard Metric Keys and Keyways. 11131 Std plain bushings only 11331 TiN plain bushings only No. Metric. 5 times the shaft diameter to ensure a good load distribution over the entire key length when the shaft. Use them on soft surfaces such as aluminum. As noted above, when selecting a keyway tolerance, there are two common selections in the metric system. Step-Down Shaft Adapters with Keyways. 8. Supplied in fitted case. Keys and keyways . Email This Page Download PDF Printable Page. High-Speed Steel Straight-Tooth Keyseat End Mills. Shaft Bore Keyway Keyway Diameter Nominal Shaft Bore Keyway Keyway Diameter Diameter (Width x Depth) Radius Over to Including Diameter minus Tolerance (Width x Depth) Radius. 4. 2 – 1967, R1990 can be referenced for measuring standard woodruff keys. gear and pulley keyways, keyways, rifling, and all hole configurations. 5 times the shaft diameter to ensure a good load distribution over the entire key length when the shaft. Typically used manually with an arbor press or hydraulic press to produce the keyways. Keyway size charts can come in both imperial and metric measurements. They are called “keys” because they lock a component to the shaft by means of a corresponding keyway in a shaft. Imperial woodruff keys are measured by their width and diameter, whereas metric woodruff keys are measured by their width and height. Woodruff Keys. Their rounded ends also make it easy to slide gears, hubs, and other components into place. Machine keys are sometimes called shaft keys, or sunk keys, and are available. When it comes to Metric Davis-Style Keyseating Broaches, you can count on Grainger. For a key to function, the shaft and rotating machine element must have a keyway and a keyseat, which is a slot and pocket in which the key fits. pdf. fStandard Metric Keys & Keyways for Metric Bores with One Key Couplings. Bore sizes range from 3/8” to 3” and 8mm to 65mm. Depth of keyway is measured at CENTRE. Just enter the size of the key and shaft, then click "Calculate". Keystock is available in both inch and metric sizes. Add to Cart. this operation doesnt come up very often, so a dedicated machine is not practical here. They conform to ANSI B17. Key steel metric rectangular keys machine chart iso standard flat. 50 £122. Linguette - sedi per alberi. 2 Keyways - Dimensions for keyways are given in Table 3. 93. S. 99. For technical drawings and 3-D models, click on a part. 3) Keyway fillet radius to be specified by customer. 401/2A Set, but for sixteenth. l. Nominal. Width Depth Radius Size Over To/Incl. The first is Js9. Use the middle of the shaft with bearings and other round-bore components. Keyway Dimensions. All of the keyways i need to cut are . Keyway size. To confirm the status of any standard, identify the replacement standard if it is obsolete and/or purchase the standard please use. See dimensions W and h in Figure 1. Nominal Shaft Diam. The spoked design allows a better grip around the rim than solid hand wheels to manually adjust valves, presses, and machine components. Use them in light duty applications to connect gears and other components to shafts. 5555 S. Use as is to make shaft smaller. Shaft Diameter. Key & Keyway Dimensions – Millimeters Coupling Hub Keyway Dimensions – Inches Shaft Diameter. 2 Broaches and 6 Bushings = 12 Keyway combinations. They are also often used on tapered shafts. Also known as sine keys. 0000 /-. Keyway Broaches High Speed Steel & TiN Coated Broach Size Broach Dimensions (Inch) No. . BS 46 Keys and keyway Dimensions-Parallel Rectangular Ref Standard . At the time of publication, the edition indicated was valid. For example: a keyway. Table 1 details the appropriate key slot and key sizes for various metric bores. Metric. keyway (bs 4235 - part i) Description. Shop All STOREHOUSE. Whether your project demands standard or metric keyways, we have you covered. Cut and bore keyways in gears, pulleys, and shafts. Ultimate tensile strength 580MPa, Yield stress approx 300 MPa. It comes in a sturdy and convenient to carry Plastic or Wooden case. 19-1997; Design of Square Key and Keyway (Wood Ruff. We stock pre keyed shafting in many diameters, including metric diameters, with standard keyways. Made of solid carbide, these keyseat cutters are harder, stronger, and more wear resistant than high-speed steel for the longest life and best finish on hard material. • Keyways available in diameters from ½" to 4-1/2" • Metric Diameters from 6mm to 125mm • Keyways available in diameters from 10mm to 65mm. tolerances and fits for metric bores and keyways.