Proper Drill Bit Size for Drilling Pilot Holes & Shank Holes
* Proper Drill Bit Size for Drilling Pilot Holes & Shank Holes
| SCREW GAGE NUMBER |
SHANK HOLE HARD & SOFT WOOD |
PILOT HOLE SOFT WOOD |
PILOT HOLE HARD WOOD |
| 0 | 1/16" | 1/64" | 1/32" |
| 1 | 5/64" | 1/32" | 1/32" |
| 2 | 3/32 | 1/32" | 3/64" |
| 3 | 7/64" | 3/64" | 1/16" |
| 4 | 7/64" | 3/64" | 1/16" |
| 5 | 1/8" | 1/16" | 5/64" |
| 6 | 9/64" | 1/16" | 5/64" |
| 7 | 5/32" | 1/16" | 3/32" |
| 8 | 11/64" | 5/64" | 3/32" |
| 9 | 3/16" | 5/64" | 7/64" |
| 10 | 3/16" | 3/32" | 7/64" |
| 11 | 13/64" | 3/32" | 1/8" |
| 12 | 7/32" | 7/64" | 1/8" |
| 14 | 1/4" | 7/64" | 9/64" |
| 16 | 17/64" | 9/64" | 5/32" |
| 18 | 19/64" | 9/64 | 3/16" |
| 20 | 21/64" | 11/64" | 13/64" |
