4/5PCS Screw Countersink Bit Set Pilot Holre Drill Metal Plastic Wood Hex Shank

1 x Hex Shank

Silver Drill Bits

Features:

Special designed steel counter sleeve countersinks or counter bores pilot hole.

- Adjustable counter sleeve depth with a wrench.

- Drill and countersink for wood screws without changing bits.

- Drilling length can be adjusted for various length screws simply by loosening and tightening

the setscrew.

- Countersink or counter bore 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,#12.

- It can drill the screw holes and keep on the same axis,after screw in screw,nut below the board!

- Apply to with a clamp or joint drilling machine, suitable for drilling in the hard wood and wood floor, machine screw for wood screw.

- Material: High Speed Steel Drill 4241

- Black chamfer drill body material: steel 45

- Model the corresponding bit size:#6 2.38mm / #8 2.78mm / #10 3.175mm / #12 3.56mm

- Shank:6.35mm dia hex shank

- For use in wood and plastic

Package included:

- 4 x Drill Bits

- 1 x Hex Shank