System of Measurement System of Measurement |
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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 |
Flute Direction Flute Direction |
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| Right Hand |
Point Style Point Style |
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| Split |
For Use On For Use On |
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Shank Type Shank Type |
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 | Round |
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 |
Individual/Set Individual/Set |
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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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Drill Bit Decimal Size Equivalents
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About Drill Bits
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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 | |
Inch | ||||||||||
Uncoated Cobalt Steel | ||||||||||
| 1/2" | 0.5" | 6" | 3.7" | Round | 1/2" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
Cobalt Steel Drill Bits for Stainless Steel and Nickel
Cobalt steel and a titanium aluminum nitride (TiAlN) coating provide the heat and wear resistance necessary for drilling in stainless steel and nickel alloys. These bits have parabolic spiral flutes, which lift chips out of the hole to reduce clogging and improve coolant flow. They are jobbers' length and have the rigidity and length required for most hand-held drilling and machine tool applications.
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 | Specifications Met | Each | |
Inch—Parabolic Spiral Flute | |||||||||
Titanium-Aluminum-Nitride (TiAlN) Coated Cobalt Steel | |||||||||
| 7/16" | 0.4375" | 5 5/8" | 3.7" | Round | 7/16" | Split | DIN 338 | 0000000 | 000000 |