Bits are made from Drop-forged, heat-treated S2 steel for superior hardness that reduce wear-outs and insure longevity, Sockets are made from heat treated chrome vanadium steel for strength and durability.
Precisely and automatically machined bit tips to ensure accurate size, chamfered bit ends insert smoothly into fasteners and protect both bits and fasteners from damaged edges.
To tighten and untighten high torque triple square screws and bolts commonly used in the alternator and pressure plate of European cars.