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System of Measurement System of Measurement |
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Shank Type Shank Type |
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Round | Morse Taper |
Overall Length Overall Length | Show |
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Overall Length Overall Length | Hide |
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Length Class Length Class |
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Extended Length |
Point Style Point Style |
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Standard |
Material Material |
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Point Angle Point Angle |
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Morse Taper Number Morse Taper Number |
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Flute Direction Flute Direction |
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Right Hand |
Bit Style Bit Style |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Finish Finish |
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Individual/Set Individual/Set |
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Step Diameter Step Diameter |
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Morse Taper Diameter Morse Taper Diameter |
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For Screw Size For Screw Size |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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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 | |||||||||
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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 | ||||||||||
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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. | |||||||
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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 |