Capri Tools CP30031 Master Torx Star Socket Set, 60-Piece Drop-forged, heat-treated S2 steel bit set that will last longer than any others in its class Work on cars, trucks, appliances, lawn equipment, machinery, and other jobs requiring star fasteners/bolts/E-sockets Chrome plated Chrome Vanadium sockets provide maximum oil and corrosion resistance Designed for breaker bars, torque wrenches and ratchets Meets and exceeds ANSI standards and comes with a lifetime replacement guarantee