Features:
Length: 65mm,100mm
Shank Size: 1/4 Inch / 6.35mm
Material: D1 Steel (Better than S2 alloy steel)
Vacuum heat treatment for long service life.
Good head bonding to reduce the screws injury.
Suit for pneumatic screwdriver or electric screwdriver.
Made of D1 steel, high hardness, which is better than S2 alloy steel.
Package Included:
5pcs x Screwdriver Bits
