1/4 Drive 6 Pt. Impact Socket Set, Standard & Deep, SAE/Metric. Off-corner loading design reduces fastener rounding. Manganese phosphate finish to resist corrosion. Offers a wide range of impact products in open stock & sets that are designed to deliver the performance and strength that the professional users require. They are made from chrome molybdenum alloy steel for exceptional strength and durability. Our sockets have a manganese phosphate coating to resist corrosion. The sockets also feature highly visible laser etched markings and a secondary size hard stamping. The sockets feature off-corner loading to reduce fastener rounding. The impact product family will allow the professional user to FORGE AHEAD.