System of Measurement System of Measurement |
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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 |
Material Material |
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Maximum Drilling Depth Maximum Drilling Depth | Show |
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Maximum Drilling Depth Maximum Drilling Depth | Hide |
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Bit Style Bit Style |
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![]() | Spiral Flute |
![]() | Parabolic Spiral Flute |
Flute Direction Flute Direction |
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Right Hand |
Individual/Set Individual/Set |
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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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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Shank Type Shank Type |
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![]() | Round |
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 | ||||||||||
10.5 mm | 0.4134" | 133mm | 66mm | Round | 10.5mm | Standard | DIN 338 | Steel, Iron, Stainless Steel | 00000000 | 000000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | ||||||||||
10.5 mm | 0.4134" | 133mm | 66mm | Round | 10.5mm | 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.
Black-oxide drill bits produce less friction than uncoated drill bits.
Shank | ||||||||||
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Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Specifications Met | Each | |
Metric | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
2.8 mm | 0.1102" | 100mm | 66mm | Round | 2.8mm | Standard | Steel, Iron | DIN 340 | 000000000 | 00000 |
Uncoated High-Speed Steel | ||||||||||
3.5 mm | 0.1378" | 112mm | 66mm | Round | 3.5mm | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | __ | 00000000 | 0000 |
Chip-Clearing Drill Bits

These jobbers'-length bits have the rigidity and length required for most applications. The flutes are designed to lift chips out of the hole, reducing clogging and improving coolant flow.
Parabolic spiral flute drill bits have wider flutes for more efficient chip evacuation than spiral-flute bits.
Drill bits with a split point keep centered without a pilot hole.
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 | Specifications Met | Each | |
Metric—Parabolic Spiral Flute | ||||||||||
Uncoated High-Speed Steel | ||||||||||
10.5 mm | 0.4134" | 133mm | 66mm | Round | 10.5mm | Split | Steel, Iron, Aluminum, Brass, Bronze, Plastic | DIN 338 | 0000000 | 000000 |
Cobalt Steel Drill Bits

These jobbers'-length bits have the rigidity and length required for most applications. Made of cobalt steel, which has better heat and wear resistance than high-speed steel, they can run up to 25% faster and have a longer tool life.
Gold-oxide drill bits produce less friction than uncoated drill bits.
Drill bits with a split point keep centered without a pilot hole.
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 | ||||||||||
Gold-Oxide Cobalt Steel | ||||||||||
10.5 mm | 0.4134" | 133mm | 66mm | Round | 10.5mm | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 000000000 | 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.
For technical drawings and 3-D models, click on a part number.
Shank | Standard Point | ||||||||
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Size | Decimal Size Equivalent | Overall Lg. | Type | Size | For Use On | Max. Drilling Dp. | Point Angle | Each | |
Metric | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
8.0 mm | 0.315" | 114mm | Round | 8mm | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 66mm | 118° | 00000000 | 000000 |