Stanley 85-919 10 Piece Professional Grade 3/8-Inch Drive 6-Point Deep Socket Set Stanley drive tools are forged from high-quality chrome vanadium steel and finished in high-polish chrome for strength and durability Stanley sockets feature our Max-Drive design which provides 15% more torque to tighten fasteners easily and simplify the turning of rounded corners Full polished chrome finish for anti-corrosion protection Meets or exceeds ANSI specifications Limited Lifetime Warranty