System of Measurement System of Measurement |
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Decimal Size Equivalent Decimal Size Equivalent |
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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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Material Material |
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Shank Type Shank Type |
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 | Round |
Flute Direction Flute Direction |
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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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Individual/Set Individual/Set |
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Bit Style Bit Style |
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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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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 | Pkg. | |||||||||||
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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 | Pkg. Qty. | Pkg. | ||
Metric | |||||||||||||
Black-Oxide High-Speed Steel | |||||||||||||
| 6.1 mm | 0.2402" | 101mm | 50.8mm | Round | 6.1mm | Standard | DIN 338 | Steel, Iron, Stainless Steel | 0000000 | 00000 | __ | 000000 | 00 |
Black-and-Gold Oxide High-Speed Steel | |||||||||||||
| 4.4 mm | 0.1732" | 86mm | 50.8mm | Round | 4.4mm | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 000000000 | 0000 | __ | 000000 | 00 |
| 4.5 mm | 0.1772" | 86mm | 50.8mm | Round | 4.5mm | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 000000000 | 0000 | 10 | 000000000 | 000000 |
| 4.6 mm | 0.1811" | 86mm | 50.8mm | Round | 4.6mm | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 000000000 | 0000 | __ | 000000 | 00 |
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.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated and black-oxide 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 | |
Metric | ||||||||||
Titanium-Nitride (TiN) Coated High-Speed Steel | ||||||||||
| 12.0 mm | 0.4724" | 102mm | 50.8mm | Round | 12mm | Split | DIN 1897 | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
| 13.0 mm | 0.5118" | 102mm | 50.8mm | Round | 13mm | Split | DIN 1897 | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Metric | ||||||||||
Gold-Oxide Cobalt Steel | ||||||||||
| 6.1 mm | 0.2402" | 101mm | 50.8mm | Round | 6.1mm | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
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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| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Type | Size | For Use On | Max. Drilling Dp. | Point Angle | Each | |
Metric | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
| 5.0 mm | 0.1968" | 95mm | Round | 5mm | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 50.8mm | 118° | 00000000 | 000000 |
| 5.5 mm | 0.2165" | 95mm | Round | 5.5mm | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 50.8mm | 118° | 00000000 | 00000 |