4PCS/SET Cone-hole Inverted Angle Drill 1/4" Hexagonal Shank Hole Drill Sinking Countersink Drill Bit Woodworking Hole Opener

Name: Conical woodworking countersunk bit drill
conical countersunk hole drill.
Number: D01301 (Long Type)

Handle: 1/4" hexagonal handle.

Package :Plastic bag package 

Material: The material of drill bit (conical core) is HSS 4241, and the material of black chamfering equipment is carbon steel.

Specifications:

No.               Corresponding to the diameter of drill bit (drill core)

6#                     3mm

10#                    3.5mm

13#                    4mm

16#                    4.5mm

Function: It can drill the screw hole and the sinking hole for the screw cap at the same time and keep them on the same axis. After the screw is screwed, the screw cap is located below the plane of the plate.

Suitable for drilling machines with chucks or joints, suitable for drilling on hard wood and wood layers.