Compare material, finish, length class, and decimal size equivalents.
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.
For technical drawings and 3-D models, click on a part number.
| Drill Bit Size | Decimal Size Equivalent | Shank Size | Point Style | Shank Type | Max. Drilling Dp. | Each | |
6" Overall Lg. | |||||||
|---|---|---|---|---|---|---|---|
Inch | |||||||
Uncoated Steel | |||||||
| 1/4" | 0.25" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 00000 |
| 5/16" | 0.3125" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 3/8" | 0.375" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 7/16" | 0.4375" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 1/2" | 0.5" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 9/16" | 0.5625" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 5/8" | 0.625" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 11/16" | 0.6875" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 3/4" | 0.75" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 13/16" | 0.8125" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 7/8" | 0.875" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 15/16" | 0.9375" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 1" | 1" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 1 1/8" | 1.125" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 1 1/4" | 1.25" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 1 3/8" | 1.375" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 1 1/2" | 1.5" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
16" Overall Lg. | |||||||
Inch | |||||||
Uncoated Steel | |||||||
| 3/8" | 0.375" | 1/4" | Standard | Hex | 14 1/4" | 0000000 | 00000 |
| 1/2" | 0.5" | 1/4" | Standard | Hex | 14 1/4" | 0000000 | 00000 |
| 5/8" | 0.625" | 1/4" | Standard | Hex | 14 1/4" | 0000000 | 00000 |
| 3/4" | 0.75" | 1/4" | Standard | Hex | 14 1/4" | 0000000 | 00000 |
| 7/8" | 0.875" | 1/4" | Standard | Hex | 14 1/4" | 0000000 | 00000 |
| 1" | 1" | 1/4" | Standard | Hex | 14 1/4" | 0000000 | 00000 |
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.
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.
For technical drawings and 3-D models, click on a part number.