High Speed Steel HSS
Sizes: .05, 1/16, 3/32, 5/64, 1.5mm & 2.5mm
Color: blue, silver, black, red,green,purple
Color coded for easy reference Replaceable tips Overview Sturdy and convenient to use, the tips have a low degree of tolerance to securely lock the screw in its place.
No more slipping or stripping screw heads.