19 Pc. 1/2" Drive 6 Point Deep SAE Impact Socket Set Made from Chrome Molybdenum Alloy Steel (CR-MO) for exceptional strength and durability. Surface Drive Technology for reduced fastener rounding. Manganese Phosphate coating for corrosion resistance. Parallel Neck Down Design on 3/8, 7/16, 1/2, and 9/16 sizes for improved access to restricted fasteners. High-Visibility etched markings for quick size identification. Secondary Hard Stamping. Set includes:. Blow Mold Case with reinforced steel hinges and steel buckles for strength and security. Deep SAE Impact Sockets from 3/8 to 1-1/2 84934N No -