Material: High carbon steel.
Handle: Round shank, diameter 9.5mm.
Uses: Suitable for bench drills and electric drills. Bench drills are recommended for easy centering.
4 barrel-type corkscrews + 4 claw-type corkscrews can meet your needs at one time.
Note: The speed should not be too fast, otherwise it will easily produce smoke, burnt black and other conditions.