10 Pc. 1/2" Drive SAE Deep Universal Socket Set Deep Flex socket design provides more reach to access restricted fasteners. 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. 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 Universal Impact Sockets from 3/8 to 15/16 84943N