Features:

- Specially designed steel counter sleeve countersinks or counter bores the pilot hole.
- Countersink depth adjustable with spanner.
- Drill and countersink for wood screws without changing bits.
- Drill length can be adjusted for different screw lengths by simply loosening and tightening the set screw.
- Countersinks or drills clean, smooth holes for screws and fasteners
- For use in wood and plastic
- 4 PCS set includes bits for drilling pilot holes for screw sizes #6,#8,#10 and #12.
- It can drill the screw holes and keep them on the same axis after screwing in the screw and nut under the board!
- Use with a power drill or drill press, suitable for drilling in hardwood and wood flooring, machine screw for wood screw.
- For use in wood and plastic

Included

4 x Drill Bits
1 x Hex Shank

Notes:

1. Please allow slight chromatic aberration in the photo
2. Due to manual measurement, the size may deviate