Size Size |
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Decimal Size Equivalent Decimal Size Equivalent |
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Bit Style Bit Style |
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 | Flat Blade |
 | Straight Flute |
For Use On For Use On |
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Shank Type Shank Type |
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 |  |
| Quick-Change Hex | Round |
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| Hex |
Individual/Set Individual/Set |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Flat-Blade Drill Bits for Wood
Also known as spade bits, these have a centering point and two cutting edges for boring holes in hard and soft wood.
6" Overall Lg. | 16" Overall Lg. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Shank Size | Point Style | Shank Type | Max. Drilling Dp. | Each | Shank Type | Max. Drilling Dp. | Each | ||
Inch | |||||||||||
Uncoated Steel | |||||||||||
| 1/4" | 0.25" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 00000 | __ | __ | 000000 | 00 |
| 5/16" | 0.3125" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 | __ | __ | 000000 | 00 |
| 3/8" | 0.375" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 | Hex | 14 1/4" | 0000000 | 000000 |
| 7/16" | 0.4375" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 | __ | __ | 000000 | 00 |
| 1/2" | 0.5" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 | Hex | 14 1/4" | 0000000 | 00000 |
| 9/16" | 0.5625" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 | __ | __ | 000000 | 00 |
| 5/8" | 0.625" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 | Hex | 14 1/4" | 0000000 | 00000 |
| 11/16" | 0.6875" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 | __ | __ | 000000 | 00 |
| 3/4" | 0.75" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 | Hex | 14 1/4" | 0000000 | 00000 |
| 13/16" | 0.8125" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 | __ | __ | 000000 | 00 |
| 7/8" | 0.875" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 | Hex | 14 1/4" | 0000000 | 00000 |
| 15/16" | 0.9375" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 | __ | __ | 000000 | 00 |
| 1" | 1" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 | Hex | 14 1/4" | 0000000 | 00000 |
| 1 1/8" | 1.125" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 | __ | __ | 000000 | 00 |
| 1 1/4" | 1.25" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 | __ | __ | 000000 | 00 |
| 1 3/8" | 1.375" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 | __ | __ | 000000 | 00 |
| 1 1/2" | 1.5" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 | __ | __ | 000000 | 00 |
Adjustable-Size Flat-Blade Drill Bits for Wood
Cut a variety of hole sizes with one bit—slide the blade to the desired cutting diameter marked on the bit and then tighten the screw. Bits include two blades, each with a different size range. Use in a drill press; they are not recommended for use with handheld drills. They have a centering point and two cutting edges for boring holes in hard and soft wood. Also known as spade bits.
Carbide Drill Bits for Sheet Metal
Harder, stronger, and more wear resistant than high-speed steel, solid-carbide bits maintain their sharp edges longer. They require rigid toolholding to prevent breakage and should not be used in hand-held drilling applications. These bits have short flutes and a sturdy construction which prevent snagging that deforms sheet metal and thin-wall tubing.
Shank | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Uncoated Carbide | |||||||||
| 1/16" | 0.0625" | 1 1/2" | 0.19" | Round | 1/16" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
| 3/32" | 0.0938" | 1 1/2" | 0.25" | Round | 3/32" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 1/8" | 0.125" | 1 1/2" | 0.31" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 5/32" | 0.1563" | 2" | 0.38" | Round | 5/32" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 3/16" | 0.1875" | 2" | 0.38" | Round | 3/16" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 7/32" | 0.2188" | 2" | 0.5" | Round | 7/32" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 1/4" | 0.25" | 2" | 0.5" | Round | 1/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 9/32" | 0.2813" | 2" | 0.5" | Round | 9/32" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 5/16" | 0.3125" | 2 1/2" | 0.63" | Round | 5/16" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 11/32" | 0.3438" | 2 1/2" | 0.63" | Round | 11/32" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 3/8" | 0.375" | 2 1/2" | 0.63" | Round | 3/8" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 13/32" | 0.4063" | 2 1/2" | 0.63" | Round | 13/32" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 7/16" | 0.4375" | 2 3/4" | 0.63" | Round | 7/16" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 15/32" | 0.4688" | 3" | 0.63" | Round | 15/32" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 1/2" | 0.5" | 3" | 0.63" | Round | 1/2" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
Flat-Blade Drill Bit Sets for Wood
Also known as spade bits, these have a centering point and two cutting edges for boring holes in hard and soft wood.