Size : 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 8.0mm, 10.0mm
-Blade : Chrome-vanadium steel, through hardened, manganese phosphated.-Space saving ProStar allows the easy removal of each key without moving any others.-The ball end enables the user to work at angles up to 25°.