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Drill Bit Decimal Size Equivalents
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Hex-Shank Drill Bits
Black Oxide
Titanium Nitride (TiN) Coated
Insert these bits directly into power screwdrivers, impact drivers, and other tools that accept 1/4" hex shanks. A split point keeps the bit centered without a pilot hole.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than black-oxide drill bits.
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 Use On | Each | |
Inch—Jobbers' Length | |||||||||
Black-Oxide High-Speed Steel | |||||||||
7/64" | 0.1094" | 2 11/16" | 0.81" | Quick-Change Hex | 1/4" | Standard | Wood, Plastics, Light Metals | 000000000 | 00000 |
9/64" | 0.1406" | 3" | 1.5" | Quick-Change Hex | 1/4" | Split | Nickel, Aluminum, Brass, Bronze, Plastic, Wood | 000000000 | 0000 |
7/16" | 0.4375" | 5 1/2" | 1.73" | Quick-Change Hex | 1/4" | __ | Wood, Plastics, Light Metals | 000000000 | 00000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | |||||||||
1/8" | 0.125" | 2 5/8" | 0.97" | Quick-Change Hex | 1/4" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
9/64" | 0.1406" | 2 3/4" | 1.08" | Quick-Change Hex | 1/4" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
5/32" | 0.1563" | 2 7/8" | 1.2" | Quick-Change Hex | 1/4" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
11/64" | 0.1719" | 3" | 1.22" | Quick-Change Hex | 1/4" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
3/16" | 0.1875" | 3" | 1.3" | Quick-Change Hex | 1/4" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
13/64" | 0.2031" | 3" | 1.31" | Quick-Change Hex | 1/4" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
7/32" | 0.2188" | 3 1/8" | 1.4" | Quick-Change Hex | 1/4" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
15/64" | 0.2344" | 3 1/8" | 1.44" | Quick-Change Hex | 1/4" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
1/4" | 0.25" | 3 1/4" | 1.5" | Quick-Change Hex | 1/4" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
9/32" | 0.2813" | 3 1/2" | 1.75" | Quick-Change Hex | 1/4" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
5/16" | 0.3125" | 4" | 2" | Quick-Change Hex | 1/4" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
11/32" | 0.3438" | 4" | 2" | Quick-Change Hex | 1/4" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
3/8" | 0.375" | 4" | 2" | Quick-Change Hex | 1/4" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
7/16" | 0.4375" | 4" | 2" | Quick-Change Hex | 1/4" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
1/2" | 0.5" | 4" | 2" | Quick-Change Hex | 1/4" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
Inch—Short Length | |||||||||
Black-Oxide High-Speed Steel | |||||||||
1/16" | 0.0625" | 1 7/8" | 0.5" | Quick-Change Hex | 1/4" | Standard | Wood, Plastics, Light Metals | 000000000 | 0000 |
5/64" | 0.0781" | 2" | 0.5" | Quick-Change Hex | 1/4" | Split | Steel | 000000000 | 0000 |
3/32" | 0.0938" | 2 1/4" | 1" | Quick-Change Hex | 1/4" | Standard | Wood, Plastics, Light Metals | 000000000 | 0000 |
1/8" | 0.125" | 2 3/4" | 0.71" | Quick-Change Hex | 1/4" | Standard | Wood, Plastics, Light Metals | 000000000 | 0000 |
5/32" | 0.1563" | 3 1/8" | 2" | Quick-Change Hex | 1/4" | Split | Steel | 000000000 | 0000 |
11/64" | 0.1719" | 3 1/4" | 1.75" | Quick-Change Hex | 1/4" | Split | Nickel, Aluminum, Brass, Bronze, Plastic, Wood | 000000000 | 0000 |
3/16" | 0.1875" | 3 1/2" | 1.02" | Quick-Change Hex | 1/4" | Standard | Wood, Plastics, Light Metals | 000000000 | 0000 |
13/64" | 0.2031" | 3 5/8" | 2" | Quick-Change Hex | 1/4" | Split | Nickel, Aluminum, Brass, Bronze, Plastic, Wood | 000000000 | 0000 |
7/32" | 0.2188" | 3 3/4" | 2.38" | Quick-Change Hex | 1/4" | Split | Nickel, Aluminum, Brass, Bronze, Plastic, Wood | 000000000 | 0000 |
1/4" | 0.25" | 4" | 1.26" | Quick-Change Hex | 1/4" | Standard | Wood, Plastics, Light Metals | 000000000 | 0000 |
5/16" | 0.3125" | 4 1/2" | 3" | Quick-Change Hex | 1/4" | Split | Nickel, Aluminum, Brass, Bronze, Plastic, Wood | 000000000 | 0000 |
1/2" | 0.5" | 6" | 2.51" | Quick-Change Hex | 1/4" | Standard | Wood, Plastics, Light Metals | 000000000 | 00000 |