This set is composed of 4, Aluminum alloy, self-centring drill bits of varying sizes (5/64, 7/64, 9/64, 11/64) for hole punching and woodworking (commonly used for cabinets, door hinges, etc..)
Reaming Tool and countersink drill bit.
| Size | Drill Hole Diameter | Self Tapping Scew |
| 5/64'' | 2mm | 2.2-2.8mm |
| 7/64'' | 2.8mm | 3-3.5mm |
| 9/64'' | 3.5mm | 4-4.5mm |
| 11/64'' | 4.5mm | 5-5.5mm |
