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About Drill Bits
Compare material, finish, length class, and decimal size equivalents.
Extended-Length Drill Bits
Black Oxide
Access hard-to-reach spots and drill deep holes.
Black-oxide drill bits produce less friction than uncoated drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
49/64" | 0.7656" | 9 7/8" | 4.85" | Round | 49/64" | Standard | Steel, Iron, Stainless Steel | 000000000 | 000000 |
| 25/32" | 0.7813" | 9 7/8" | 4.82" | Round | 25/32" | Standard | Steel, Iron, Stainless Steel | 000000000 | 00000 |
High-Speed Steel Morse Taper-Shank Drill Bits
Install the Morse taper shank directly into the tapered spindle on machines such as drill presses and lathes.
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 | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 49/64" | 0.7656" | 2 | 0.7" | 9 7/8" | 4.85" | Morse Taper | Standard | Steel, Iron, Stainless Steel | 00000000 | 000000 |
| 25/32" | 0.7813" | 2 | 0.7" | 9 7/8" | 4.82" | Morse Taper | Standard | Steel, Iron, Stainless Steel | 00000000 | 00000 |
Counterboring Drill Bits
Often called step drill bits, these drill and counterbore holes at the same time. After drilling and counterboring, tap the hole and install your fastener. The body diameter may decrease after multiple sharpenings.
For technical drawings and 3-D models, click on a part number.
Dia. | Lg. | |||||||
|---|---|---|---|---|---|---|---|---|
| For Screw Size | Body | Step | Step | Overall | Point Angle | For Use On | Each | |
Uncoated High-Speed Steel | ||||||||
| 1/2" | 0.781" | 0.531" | 1" | 9 7/8" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000000 |