Complete 3/8 Drive Socket Set, 48 Pieces – SAE & Metric with. Complete 3/8 Drive Socket Set. 48 Pieces – SAE & Metric with. Crafted from chrome vanadium Cr-V steel. Durable black phosphate finish for enhanced protection. Maintains high hardness and good toughness after heat treatment and forging. Innovative radius corner design for high-torque performance, […]