System of Measurement System of Measurement |
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Cut Style Cut Style | Show |
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![]() | Keyseat |
Cut Style Cut Style | Hide |
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For Use On For Use On |
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Material Material |
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Neck Diameter Neck Diameter |
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For Woodruff ANSI Key Number For WoodruffANSI Key Number |
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Overall Length Overall Length |
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Shank Type Shank Type |
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![]() | Round |
Individual/Set Individual/Set |
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![]() | Individual |
Number of Milling Ends Number of Milling Ends |
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![]() | 1 |
RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Finish Finish |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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High-Speed Steel Straight-Tooth Keyseat End Mills


Use these end mills for general purpose keyseat cutting in a wide range of material, including aluminum, iron, and steel. They mill precise notches in rotary shafts to fit machine keys and can also be used for slot milling.
For technical drawings and 3-D models, click on a part number.
Mill | Neck | ||||||||
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Dia. | Thick. | Shank Dia. | Dia. | Lg. | Overall Lg. | For Woodruff ANSI Key No. | For Use On | Each | |
1/4" | 1/16" | 1/2" | 0.11" | 3/8" | 2 1/16" | 202 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
5/16" | 1/16" | 1/2" | 0.11" | 3/8" | 2 1/16" | 202 1/2 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
5/16" | 3/32" | 1/2" | 0.11" | 3/8" | 2 3/32" | 302 1/2 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/8" | 1/16" | 1/2" | 0.11" | 3/8" | 2 1/16" | 203 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/8" | 3/32" | 1/2" | 0.12" | 3/8" | 2 3/32" | 303 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/8" | 1/8" | 1/2" | 0.13" | 3/8" | 2 1/8" | 403 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1/2" | 0.02" | 1/2" | 0.13" | 3/8" | 2.02" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1/2" | 1/32" | 1/2" | 0.13" | 3/8" | 2 1/32" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1/2" | 3/64" | 1/2" | 0.13" | 3/8" | 2 3/64" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1/2" | 1/16" | 1/2" | 0.13" | 3/8" | 2 1/16" | 204 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1/2" | 3/32" | 1/2" | 0.16" | 3/8" | 2 3/32" | 304 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1/2" | 1/8" | 1/2" | 0.19" | 3/8" | 2 1/8" | 404 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
5/8" | 0.02" | 1/2" | 0.19" | 3/8" | 2.02" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
5/8" | 1/32" | 1/2" | 0.19" | 3/8" | 2 1/32" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
5/8" | 3/64" | 1/2" | 0.19" | 3/8" | 2 3/64" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
5/8" | 1/16" | 1/2" | 0.19" | 3/8" | 2 1/16" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
5/8" | 3/32" | 1/2" | 0.19" | 3/8" | 2 3/32" | 305 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
5/8" | 1/8" | 1/2" | 0.22" | 3/8" | 2 1/8" | 405 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
5/8" | 5/32" | 1/2" | 0.25" | 3/8" | 2 5/32" | 505 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
5/8" | 3/16" | 1/2" | 0.25" | 3/8" | 2 3/16" | 605 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/4" | 1/32" | 1/2" | 0.22" | 3/8" | 2 1/32" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/4" | 1/16" | 1/2" | 0.22" | 3/8" | 2 1/16" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/4" | 3/32" | 1/2" | 0.22" | 3/8" | 2 3/32" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/4" | 1/8" | 1/2" | 0.22" | 3/8" | 2 1/8" | 406 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/4" | 5/32" | 1/2" | 0.25" | 3/8" | 2 5/32" | 506 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/4" | 3/16" | 1/2" | 0.28" | 3/8" | 2 3/16" | 606 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/4" | 1/4" | 1/2" | 0.28" | 3/8" | 2 1/4" | 806 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
7/8" | 5/32" | 1/2" | 0.25" | 3/8" | 2 5/32" | 507 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
7/8" | 3/16" | 1/2" | 0.28" | 3/8" | 2 3/16" | 607 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
7/8" | 7/32" | 1/2" | 0.28" | 3/8" | 2 7/32" | 707 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
7/8" | 1/4" | 1/2" | 0.34" | 3/8" | 2 1/4" | 807 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1" | 1/16" | 1/2" | 0.28" | 3/8" | 2 1/16" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1" | 3/32" | 1/2" | 0.28" | 3/8" | 2 3/32" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1" | 1/8" | 1/2" | 0.28" | 3/8" | 2 1/8" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1" | 3/16" | 1/2" | 0.28" | 3/8" | 2 3/16" | 608 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1" | 7/32" | 1/2" | 0.34" | 3/8" | 2 7/32" | 708 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1" | 1/4" | 1/2" | 0.34" | 3/8" | 2 1/4" | 808 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1" | 5/16" | 1/2" | 0.4" | 3/8" | 2 5/16" | 1008 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1" | 3/8" | 1/2" | 0.4" | 3/8" | 2 3/8" | 1208 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/8" | 1/16" | 1/2" | 0.31" | 3/8" | 2 1/16" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/8" | 3/32" | 1/2" | 0.31" | 3/8" | 2 3/32" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/8" | 1/8" | 1/2" | 0.31" | 3/8" | 2 1/8" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/8" | 3/16" | 1/2" | 0.31" | 3/8" | 2 3/16" | 609 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/8" | 7/32" | 1/2" | 0.31" | 3/8" | 2 7/32" | 709 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/8" | 1/4" | 1/2" | 0.38" | 3/8" | 2 1/4" | 809 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/8" | 5/16" | 1/2" | 0.44" | 3/8" | 2 5/16" | 1009 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/4" | 1/16" | 1/2" | 0.31" | 3/8" | 2 1/16" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/4" | 3/32" | 1/2" | 0.31" | 3/8" | 2 3/32" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/4" | 1/8" | 1/2" | 0.31" | 3/8" | 2 1/8" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/4" | 3/16" | 1/2" | 0.31" | 3/8" | 2 3/16" | 610 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/4" | 7/32" | 1/2" | 0.38" | 3/8" | 2 7/32" | 710 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/4" | 1/4" | 1/2" | 0.38" | 3/8" | 2 1/4" | 810 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/4" | 5/16" | 1/2" | 0.44" | 3/8" | 2 5/16" | 1010 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/4" | 3/8" | 1/2" | 0.47" | 3/8" | 2 3/8" | 1210 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 3/8" | 1/4" | 1/2" | 0.4" | 3/8" | 2 1/4" | 811 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 3/8" | 5/16" | 1/2" | 0.47" | 3/8" | 2 5/16" | 1011 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 3/8" | 3/8" | 1/2" | 0.47" | 3/8" | 2 3/8" | 1211 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/2" | 1/16" | 1/2" | 0.44" | 3/8" | 2 1/16" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/2" | 3/32" | 1/2" | 0.44" | 3/8" | 2 3/32" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/2" | 3/16" | 1/2" | 0.44" | 3/8" | 2 3/16" | __ | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/2" | 1/4" | 1/2" | 0.44" | 3/8" | 2 1/4" | 812 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/2" | 5/16" | 1/2" | 0.47" | 3/8" | 2 5/16" | 1012 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/2" | 3/8" | 1/2" | 0.47" | 3/8" | 2 3/8" | 1212 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
Carbide Straight-Tooth Keyseat End Mills


Made of solid carbide, these cutters are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking. Use them to mill precise notches in rotary shafts to fit machine keys. They can also be used for slot milling.
For technical drawings and 3-D models, click on a part number.
Mill | Neck | ||||||||
---|---|---|---|---|---|---|---|---|---|
Dia. | Thick. | Shank Dia. | Dia. | Lg. | Overall Lg. | For Woodruff ANSI Key No. | For Use On | Each | |
3/8" | 1/16" | 1/2" | 0.2" | 1/4" | 2 1/16" | 203 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
3/8" | 3/32" | 1/2" | 0.2" | 1/4" | 2 3/32" | 303 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
3/8" | 1/8" | 1/2" | 0.2" | 1/4" | 2 1/8" | 403 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
1/2" | 1/16" | 1/2" | 0.25" | 1/4" | 2 1/16" | 204 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
1/2" | 3/32" | 1/2" | 0.25" | 1/4" | 2 3/32" | 304 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1/2" | 1/8" | 1/2" | 0.25" | 1/4" | 2 1/8" | 404 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
5/8" | 3/32" | 1/2" | 0.28" | 1/4" | 2 3/32" | 305 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
5/8" | 1/8" | 1/2" | 0.28" | 1/4" | 2 1/8" | 405 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
5/8" | 5/32" | 1/2" | 0.28" | 1/4" | 2 5/32" | 505 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
5/8" | 3/16" | 1/2" | 0.28" | 1/4" | 2 3/16" | 605 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
3/4" | 1/8" | 1/2" | 0.28" | 1/4" | 2 1/8" | 406 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
3/4" | 5/32" | 1/2" | 0.28" | 1/4" | 2 5/32" | 506 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
3/4" | 3/16" | 1/2" | 0.28" | 1/4" | 2 3/16" | 606 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
3/4" | 1/4" | 1/2" | 0.28" | 1/4" | 2 1/4" | 806 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
7/8" | 5/32" | 1/2" | 0.28" | 1/4" | 2 5/32" | 507 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
7/8" | 3/16" | 1/2" | 0.28" | 1/4" | 2 3/16" | 607 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
7/8" | 7/32" | 1/2" | 0.28" | 1/4" | 2 7/32" | 707 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
7/8" | 1/4" | 1/2" | 0.28" | 1/4" | 2 1/4" | 807 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1" | 3/16" | 1/2" | 0.28" | 1/4" | 2 3/16" | 608 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1" | 7/32" | 1/2" | 0.28" | 1/4" | 2 7/32" | 708 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1" | 1/4" | 1/2" | 0.28" | 1/4" | 2 1/4" | 808 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1 1/8" | 3/16" | 1/2" | 0.28" | 1/4" | 2 3/16" | 609 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1 1/8" | 7/32" | 1/2" | 0.28" | 1/4" | 2 7/32" | 709 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1 1/8" | 1/4" | 1/2" | 0.28" | 1/4" | 2 1/4" | 809 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1 1/8" | 5/16" | 1/2" | 0.44" | 3/8" | 2 5/16" | 1009 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1 1/4" | 3/16" | 1/2" | 0.28" | 1/4" | 2 3/16" | 610 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1 1/4" | 7/32" | 1/2" | 0.28" | 1/4" | 2 7/32" | 710 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1 1/4" | 1/4" | 1/2" | 0.28" | 1/4" | 2 1/4" | 810 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1 1/4" | 5/16" | 1/2" | 0.44" | 3/8" | 2 5/16" | 1010 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1 1/4" | 3/8" | 1/2" | 0.47" | 3/8" | 2 3/8" | 1210 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1 3/8" | 1/4" | 1/2" | 0.4" | 3/8" | 2 1/4" | 811 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1 3/8" | 5/16" | 1/2" | 0.47" | 3/8" | 2 5/16" | 1011 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1 3/8" | 3/8" | 1/2" | 0.47" | 3/8" | 2 3/8" | 1211 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1 1/2" | 1/4" | 1/2" | 0.31" | 1/4" | 2 1/4" | 812 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1 1/2" | 5/16" | 1/2" | 0.31" | 1/4" | 2 5/16" | 1012 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1 1/2" | 3/8" | 1/2" | 0.31" | 1/4" | 2 3/8" | 1212 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
Cobalt Steel Straight-Tooth Keyseat End Mills


With better heat and wear resistance than high-speed steel, these cobalt steel keyseat cutters can run at higher speeds and provide better performance on hard material. They mill precise notches in rotary shafts to fit machine keys and can also be used for slot milling.
Mill | Neck | |||||||
---|---|---|---|---|---|---|---|---|
Dia. | Thick. | Shank Dia. | Dia. | Lg. | Overall Lg. | For Use On | Each | |
1/2" | 0.02" | 1/2" | 0.13" | 3/8" | 2.02" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1/2" | 1/32" | 1/2" | 0.13" | 3/8" | 2 1/32" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
1/2" | 3/64" | 1/2" | 0.13" | 3/8" | 2 3/64" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
5/8" | 0.02" | 1/2" | 0.19" | 3/8" | 2.02" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
5/8" | 1/32" | 1/2" | 0.19" | 3/8" | 2 1/32" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
5/8" | 3/64" | 1/2" | 0.19" | 3/8" | 2 3/64" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
5/8" | 1/16" | 1/2" | 0.19" | 3/8" | 2 1/16" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
3/4" | 1/32" | 1/2" | 0.22" | 3/8" | 2 1/32" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
3/4" | 1/16" | 1/2" | 0.22" | 3/8" | 2 1/16" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
3/4" | 3/32" | 1/2" | 0.22" | 3/8" | 2 3/32" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
1" | 1/16" | 1/2" | 0.28" | 3/8" | 2 1/16" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
1" | 3/32" | 1/2" | 0.28" | 3/8" | 2 3/32" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
1" | 1/8" | 1/2" | 0.28" | 3/8" | 2 1/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
1 1/8" | 1/16" | 1/2" | 0.31" | 3/8" | 2 1/16" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
1 1/8" | 3/32" | 1/2" | 0.31" | 3/8" | 2 3/32" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
1 1/8" | 1/8" | 1/2" | 0.31" | 3/8" | 2 1/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
1 1/4" | 1/16" | 1/2" | 0.31" | 3/8" | 2 1/16" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
1 1/4" | 3/32" | 1/2" | 0.31" | 3/8" | 2 3/32" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
1 1/4" | 1/8" | 1/2" | 0.31" | 3/8" | 2 1/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
1 1/2" | 1/16" | 1/2" | 0.44" | 3/8" | 2 1/16" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
1 1/2" | 3/32" | 1/2" | 0.44" | 3/8" | 2 3/32" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
1 1/2" | 3/16" | 1/2" | 0.44" | 3/8" | 2 3/16" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
High-Speed Steel Staggered-Tooth Keyseat End Mills


Use these end mills for general purpose keyseat cutting in a wide range of material, including aluminum, iron, and steel. An alternating right- and left-hand tooth style allows them to remove more material at high speeds than straight-tooth keyseat cutters. They mill precise notches in rotary shafts to fit machine keys and can also be used for slot milling.
For technical drawings and 3-D models, click on a part number.
Mill | Neck | ||||||||
---|---|---|---|---|---|---|---|---|---|
Dia. | Thick. | Shank Dia. | Dia. | Lg. | Overall Lg. | For Woodruff ANSI Key No. | For Use On | Each | |
1/4" | 1/16" | 1/2" | 0.11" | 3/8" | 2 1/16" | 202 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
5/16" | 3/32" | 1/2" | 0.11" | 3/8" | 2 3/32" | 302 1/2 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/8" | 1/16" | 1/2" | 0.12" | 3/8" | 2 1/16" | 203 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/8" | 1/8" | 1/2" | 0.13" | 3/8" | 2 1/8" | 403 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1/2" | 1/16" | 1/2" | 0.13" | 3/8" | 2 1/16" | 204 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1/2" | 3/32" | 1/2" | 0.16" | 3/8" | 2 3/32" | 304 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1/2" | 1/8" | 1/2" | 0.19" | 3/8" | 2 1/8" | 404 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
5/8" | 3/32" | 1/2" | 0.19" | 3/8" | 2 3/32" | 305 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
5/8" | 1/8" | 1/2" | 0.22" | 3/8" | 2 1/8" | 405 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
5/8" | 3/16" | 1/2" | 0.25" | 3/8" | 2 3/16" | 605 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/4" | 1/8" | 1/2" | 0.22" | 3/8" | 2 1/8" | 406 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/4" | 3/16" | 1/2" | 0.28" | 3/8" | 2 3/16" | 606 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/4" | 1/4" | 1/2" | 0.28" | 3/8" | 2 1/4" | 806 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
7/8" | 3/16" | 1/2" | 0.28" | 3/8" | 2 3/16" | 607 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
7/8" | 1/4" | 1/2" | 0.34" | 3/8" | 2 1/4" | 807 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1" | 3/16" | 1/2" | 0.28" | 3/8" | 2 3/16" | 608 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1" | 1/4" | 1/2" | 0.34" | 3/8" | 2 1/4" | 808 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1" | 5/16" | 1/2" | 0.4" | 3/8" | 2 5/16" | 1008 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1" | 3/8" | 1/2" | 0.4" | 3/8" | 2 3/8" | 1208 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1 1/2" | 1/4" | 1/2" | 0.44" | 3/8" | 2 1/4" | 812 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1 1/2" | 3/8" | 1/2" | 0.47" | 3/8" | 2 3/8" | 1212 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
Carbide Staggered-Tooth Keyseat End Mills


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. They have an alternating right- and left-hand tooth style for removing more material at high speeds than straight-tooth keyseat cutters. They mill precise notches in rotary shafts to fit machine keys and can also be used for slot milling.
For technical drawings and 3-D models, click on a part number.
Mill | Neck | |||||||
---|---|---|---|---|---|---|---|---|
Dia. | Thick. | Shank Dia. | Dia. | Lg. | Overall Lg. | For Use On | Each | |
1/2" | 1/16" | 1/2" | 0.135" | 1/8" | 2 3/4" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
1/2" | 1/8" | 1/2" | 0.19" | 1/8" | 2 3/4" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 00000 |
3/4" | 1/8" | 1/2" | 0.23" | 1/4" | 2 3/4" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
1" | 1/4" | 1/2" | 0.345" | 1/4" | 2 1/2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
1 1/2" | 3/8" | 1/2" | 0.49" | 1/4" | 2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |