40 Piece Pro Tech 3/8 in. Dr. Impact Socket Set

Powerbuilt 40-Piece 3/8 Inch Drive 6 Point SAE & Metric Pro Tech Impact Socket Set feature impact-rated Chrome Molybdenum Steel for durability and an industrial grade Black Phosphate finish to prevent corrosion. The sockets have laser-engraved size marking, precision chamfered hex faces make it easier to guide onto fasteners, and the exclusive Z-Drive 6-point hex pattern that turns the flat surfaces of fasteners to reduce rounding and slipping. The socket center holes are punched through for added clearance for taller nuts and bolts. Powerbuilt sockets meet or exceed ANSI standards.