System of Measurement System of Measurement |
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Decimal Size Equivalent Decimal Size Equivalent |
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Length Class Length Class |
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 | Jobbers' Length |
 | Short Length |
For Use On For Use On |
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Material Material |
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Finish Finish |
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Flute Direction Flute Direction |
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| Right Hand |
Bit Style Bit Style |
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| Spiral Flute | Straight Flute |
Maximum Drilling Depth Maximum Drilling Depth | Show |
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Maximum Drilling Depth Maximum Drilling Depth | Hide |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Individual/Set Individual/Set |
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Specifications Met Specifications Met |
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For Maximum Hardness For Maximum Hardness |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Short-Length Drill Bits
Also known as screw-machine and stub-length bits, these provide maximum rigidity for drilling straighter holes than jobbers'- and maintenance-length drill bits.
Black-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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| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Letter | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| V | 0.377" | 3 1/4" | 1.12" | Round | 0.377" | Split | NAS907 Type C | Steel, Iron, Stainless Steel | 00000000 | 00000 |
| Y | 0.404" | 3 3/8" | 1.12" | Round | 0.404" | Split | NAS907 Type C | Steel, Iron, Stainless Steel | 00000000 | 00000 |
Short-Flute Cobalt Steel Drill Bits
The short flutes on these jobbers'-length bits provide increased rigidity for drilling straighter holes. 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. A split point keeps the bit centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | ||||||||||
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| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Specifications Met | Each | |
Inch | ||||||||||
Black-Oxide Cobalt Steel | ||||||||||
| 19/64" | 0.2969" | 4 3/8" | 1.12" | Round | 19/64" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 000000 |
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.
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 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Letter | |||||||||
Uncoated Cobalt Steel | |||||||||
| L | 0.29" | 2 3/4" | 1.12" | Round | 0.29" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 000000000 | 00000 |
| M | 0.295" | 2 3/4" | 1.12" | Round | 0.295" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 000000000 | 0000 |
Cobalt Steel Hex-Shank Drill Bits
In addition to resisting heat and wear better than high-speed steel drill bits, these can also run up to 25% faster and have a longer tool life. Insert them into power screwdrivers, impact drivers, and other tools that accept hex shanks. The flat surfaces on the hex shank allow tool chucks to grip these bits more securely than those with a round shank. A split point keeps the bits centered without a pilot hole.
Shank | |||||||||
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| Drill Bit Size | Decimal Size Equivalent | Overall Length | Maximum Drilling Depth | Type | Size | Point Style | For Use On | Each | |
Uncoated Cobalt Steel | |||||||||
| 9/32" | 0.2812" | 4 1/4" | 1.12" | Hex | 9/32" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
Carbide-Tipped Drill Bits for Hardened Steel
The straight flutes and notched point withstand the heavy pressure necessary to penetrate hard steel. These carbide-tipped bits maintain their sharp edges when drilling abrasive material. Because they aren’t as brittle as solid carbide bits, they can be used in less rigid setups, such as a hand-held drill. 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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Max. Hardness | Each | |
Inch | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
| 9/32" | 0.2813" | 4 1/4" | 1.12" | Round | 9/32" | Notched | Rockwell C60 | 0000000 | 000000 |
Drill Bits for Plastic
The sharp point allows for gradual penetration to reduce friction and eliminate cracking and chipping when drilling in plastic. These bits are jobbers' length and have the rigidity and length required for most applications.
For technical drawings and 3-D models, click on a part number.