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About Drill Bits
Compare material, finish, length class, and decimal size equivalents.
Cobalt Steel Morse Taper-Shank Drill Bits
With better heat and wear resistance than high-speed steel, these cobalt steel bits can run up to 25% faster and have a longer tool life. Install the Morse taper shank directly into the tapered spindle on machines such as drill presses and lathes. A split point keeps the bit centered without a pilot hole.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.
For technical drawings and 3-D models, click on a part number.
Morse Taper | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | No. | Dia. | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | For Use On | Each | |
Inch | ||||||||||
Uncoated Cobalt Steel | ||||||||||
1/4" | 0.25" | 1 | 0.475" | 6 1/8" | 2.88" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
| 17/64" | 0.2656" | 1 | 0.475" | 6 1/4" | 3" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
| 9/32" | 0.2813" | 1 | 0.475" | 6 1/4" | 3" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 5/16" | 0.3125" | 1 | 0.475" | 6 3/8" | 3.13" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 21/64" | 0.3281" | 1 | 0.475" | 6 1/2" | 3.25" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
| 11/32" | 0.3438" | 1 | 0.475" | 6 1/2" | 3.25" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 3/8" | 0.375" | 2 | 0.7" | 7 3/8" | 3.5" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 25/64" | 0.3906" | 2 | 0.7" | 7 1/2" | 3.63" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
| 13/32" | 0.4063" | 2 | 0.7" | 7 1/2" | 3.63" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 27/64" | 0.4219" | 2 | 0.7" | 7 3/4" | 3.88" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 7/16" | 0.4375" | 2 | 0.7" | 7 3/4" | 3.88" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 1/2" | 0.5" | 2 | 0.7" | 8 1/4" | 4.38" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 17/32" | 0.5313" | 2 | 0.7" | 8 1/2" | 4.63" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 9/16" | 0.5625" | 2 | 0.7" | 8 3/4" | 4.88" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 5/8" | 0.625" | 2 | 0.7" | 8 3/4" | 4.88" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
| 21/32" | 0.6563" | 3 | 0.938" | 9 3/4" | 5.13" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 11/16" | 0.6875" | 3 | 0.938" | 10" | 5.38" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
| 3/4" | 0.75" | 3 | 0.938" | 10 1/2" | 5.88" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
| 13/16" | 0.8125" | 3 | 0.938" | 10 3/4" | 6.13" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
| 7/8" | 0.875" | 3 | 0.938" | 10 3/4" | 6.13" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
| 15/16" | 0.9375" | 3 | 0.938" | 10 3/4" | 6.13" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
| 1" | 1" | 3 | 0.938" | 11" | 6.38" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
| 1 1/16" | 1.0625" | 4 | 1.231" | 12 1/4" | 6.63" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
| 1 1/4" | 1.25" | 4 | 1.231" | 13 1/2" | 8.63" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
Titanium-Nitride (TiN) Coated Cobalt Steel | ||||||||||
| 5/8" | 0.625" | 2 | 0.7" | 10" | 4.88" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 000000 |
| 3/4" | 0.75" | 3 | 0.938" | 10 1/2" | 5.88" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 000000 |
| 7/8" | 0.875" | 3 | 0.938" | 10 3/4" | 6.13" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 000000 |
Bronze-Plated Cobalt Steel | ||||||||||
| 41/64" | 0.6406" | 2 | 0.7" | 9" | 3.84" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |