System of Measurement System of Measurement |
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Decimal Size Equivalent Decimal Size Equivalent | Show |
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Decimal Size Equivalent Decimal Size Equivalent | Hide |
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Shank Type Shank Type |
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Round | Reduced Round |
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Morse Taper |
For Use On For Use On |
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Length Class Length Class |
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Jobbers' Length |
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Extended Length |
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Reduced Shank Length |
Finish Finish |
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Material Material |
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Bit Style Bit Style |
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Flute Direction Flute Direction |
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Right Hand |
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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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Individual/Set Individual/Set |
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Morse Taper Diameter Morse Taper Diameter |
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Morse Taper Number Morse Taper Number |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Drill Bits



These jobbers'-length bits have the rigidity and length required for most applications.
Black-oxide and black-and-gold-oxide drill bits produce less friction than uncoated drill bits.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated and oxide-coated drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | Each | |||||||||
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Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Metric | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
15.0 mm | 0.5905" | 169mm | 84mm | Round | 15mm | Standard | DIN 338 | Steel, Iron, Stainless Steel | 00000000 | 000000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | ||||||||||
15.0 mm | 0.5905" | 169mm | 84mm | Round | 15mm | Standard | DIN 338 | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Extended-Length Drill Bits

Access hard-to-reach spots and drill deep holes.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
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Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Metric | |||||||||
Uncoated High-Speed Steel | |||||||||
15.0 mm | 0.5905" | 220mm | 114.4mm | Round | 15mm | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
Carbide-Tipped Drill Bits

These jobbers'-length bits have the rigidity and length required for most applications. Made of carbide-tipped steel, which has better wear resistance than high-speed steel and cobalt steel, they maintain a sharper, harder edge at high temperatures for excellent performance on abrasive material, such as plastic. Because they aren’t as brittle as solid carbide bits, they can be used in less rigid setups, such as a hand-held drill.
Drill bits with a split point keep centered without a pilot hole.
Drill bits with 135° point angle produce smaller chips than 118° point to prevent clogging.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
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Size | Decimal Size Equivalent | Overall Lg. | Type | Size | For Use On | Max. Drilling Dp. | Point Angle | Each | |
Standard Point | |||||||||
Metric | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
15.0 mm | 0.5905" | 181mm | Round | 15mm | Iron, Aluminum, Brass, Bronze, Plastic | 132mm | 118° | 00000000 | 000000 |
Split Point | |||||||||
Metric | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
15.0 mm | 0.5905" | 181mm | Round | 15mm | Iron, Aluminum, Brass, Bronze, Plastic | 132mm | 135° | 00000000 | 00000 |
1/2" Diameter Reduced-Shank Drill Bits

The shank has a smaller diameter than the tip, allowing you to drill large holes with machines that have small-capacity chucks. Also known as Silver and Deming bits, they have a 1/2” diameter shank.
For technical drawings and 3-D models, click on a part number.
Shank | Drill Bits | ||||||||
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Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | For Use On | Point Style | Each | |
Metric | |||||||||
Black-Oxide High-Speed Steel | |||||||||
15.0 mm | 0.5905" | 152mm | 53.3mm | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 000000 |
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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Size | Decimal Size Equivalent | No. | Dia. | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | Specifications Met | For Use On | Each | |
Metric | |||||||||||
Black-Oxide High-Speed Steel | |||||||||||
15.0 mm | 0.5905" | 2 | 0.7" | 212mm | 83.9mm | Morse Taper | Standard | DIN 345 | Steel, Iron, Stainless Steel | 00000000 | 000000 |