System of Measurement System of Measurement |
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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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| Extended Length |
Material Material |
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Finish Finish |
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Shank Type Shank Type |
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| Round | Morse Taper |
Bit Style Bit Style |
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 | Spiral Flute |
Individual/Set Individual/Set |
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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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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Specifications Met Specifications Met |
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Shaft Type Shaft Type |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Extended-Length Drill Bits
Black-oxide drill bits produce less friction than uncoated drill bits.
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 | For Use On | Each | |
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 7/8" | 0.875" | 10" | 4.81" | Round | 7/8" | Standard | Steel, Iron, Stainless Steel | 000000000 | 000000 |
Cobalt Steel Drill Bits
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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Inch | ||||||||||
Titanium-Nitride (TiN) Coated Cobalt Steel | ||||||||||
| 33/64" | 0.5156" | 6 5/8" | 4.81" | Round | 33/64" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 000000 |
| 17/32" | 0.5313" | 6 5/8" | 4.81" | Round | 17/32" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
| 35/64" | 0.5469" | 6 5/8" | 4.81" | Round | 35/64" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
| 9/16" | 0.5625" | 6 5/8" | 4.81" | Round | 9/16" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
| 37/64" | 0.5781" | 6 5/8" | 4.81" | Round | 37/64" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
Extended-Length Carbide-Tipped Drill Bits
Access hard-to-reach spots and drill deep holes. More wear resistant than cobalt steel and high-speed steel, these carbide-tipped bits 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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
| 7/8" | 0.875" | 10" | 4.81" | Round | 7/8" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
High-Speed Steel Morse Taper-Shank Drill Bits
Install the Morse taper shank directly into the tapered spindle on machines such as drill presses and lathes.
For technical drawings and 3-D models, click on a part number.
Morse Taper | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | No. | Dia. | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | For Use On | Each | |
Inch | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 7/8" | 0.875" | 2 | 0.7" | 10" | 4.81" | Morse Taper | Standard | Steel, Iron, Stainless Steel | 00000000 | 000000 |
| 7/8" | 0.875" | 3 | 0.938" | 10 3/4" | 4.81" | Morse Taper | Standard | Steel, Iron, Stainless Steel | 00000000 | 00000 |
Drill Bits for Wire Installation
Unlike traditional wire-installing drill bits, you do not need to strip the end of the wire when using one of these bits. After drilling, insert the wire into the bit's hollow shaft and pull through the drilled hole. Also known as bell hanger bits.
Shank | ||||||||
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| Size | Decimal Size Equivalent | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
18" Overall Lg. | ||||||||
Inch | ||||||||
Black-Oxide High-Speed Steel | ||||||||
| 33/64" | 0.515" | 4.81" | Round | 1/2" | Standard | Steel, Iron, Stainless Steel, Aluminum, Copper, Brass, Bronze, Fiberglass, Plastic, Wood | 0000000 | 000000 |
28" Overall Lg. | ||||||||
Inch | ||||||||
Black-Oxide High-Speed Steel | ||||||||
| 33/64" | 0.515" | 4.81" | Round | 1/2" | Standard | Steel, Iron, Stainless Steel, Aluminum, Copper, Brass, Bronze, Fiberglass, Plastic, Wood | 0000000 | 00000 |
36" Overall Lg. | ||||||||
Inch | ||||||||
Black-Oxide High-Speed Steel | ||||||||
| 33/64" | 0.515" | 4.81" | Round | 1/2" | Standard | Steel, Iron, Stainless Steel, Aluminum, Copper, Brass, Bronze, Fiberglass, Plastic, Wood | 0000000 | 00000 |