System of Measurement System of Measurement |
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Size Size | Show |
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Size Size | Hide |
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Decimal Size Equivalent Decimal Size Equivalent |
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For Use On For Use On |
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Material Material |
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Finish Finish |
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Length Class Length Class |
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 | Jobbers' Length |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Individual/Set Individual/Set |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Shank Type Shank Type |
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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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Shank Size Shank Size |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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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.
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 | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 8.6 mm | 0.3386" | 125mm | 63.8mm | Round | 8.6mm | Standard | DIN 338 | Steel, Iron, Stainless Steel | 00000000 | 00000 |
Black-and-Gold Oxide High-Speed Steel | ||||||||||
| 8.6 mm | 0.3386" | 121mm | 86.1mm | Round | 8.6mm | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 000000000 | 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.
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 | ||||||||||
| 8.6 mm | 0.3386" | 125mm | 81mm | Round | 8.6mm | 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.
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 | ||||||||||
Uncoated Cobalt Steel | ||||||||||
| 8.6 mm | 0.3386" | 121mm | 86.1mm | Round | 8.6mm | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 000000000 | 000000 |