Length Class Length Class |
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System of Measurement System of Measurement |
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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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Bit Style Bit Style |
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 | Spiral Flute |
Flute Direction Flute Direction |
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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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Overall Length Overall Length | Show |
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Overall Length Overall Length | Hide |
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Individual/Set Individual/Set |
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Specifications Met Specifications Met |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Short-Length Cobalt Steel Drill Bits
Also known as screw-machine and stub-length bits, these provide maximum rigidity for drilling straighter holes than jobbers'-length drill bits. 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.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds 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 | For Use On | Each | |
Wire Gauge | |||||||||
Titanium-Nitride (TiN) Coated Cobalt Steel | |||||||||
| 52 ga | 0.0635" | 1 11/16" | 0.25" | Round | 0.0635" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
| 51 ga | 0.067" | 1 11/16" | 0.26" | Round | 0.067" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 0000 |
| 50 ga | 0.07" | 1 11/16" | 0.28" | Round | 0.07" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 0000 |
| 49 ga | 0.073" | 1 11/16" | 0.29" | Round | 0.073" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 0000 |
| 48 ga | 0.076" | 1 11/16" | 0.3" | Round | 0.076" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 0000 |
| 47 ga | 0.0785" | 1 11/16" | 0.31" | Round | 0.0785" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 0000 |
Drill Bits for Spot Welds
Three drill points allow these bits to separate spot-welded panels without damaging the bottom panel.
Drill bits with flat on shank are used in spot-weld drills, such as Spitznagel.
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 | Features | Specifications Met | For Use On | Each | |
Inch | |||||||||||
Uncoated High-Speed Steel | |||||||||||
| 5/16" | 0.3125" | 1 11/16" | 0.04" | Round | 5/16" | Brad | Flat on Shank | NAS907 Type J | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 000000 | 000000 |