ATE 3pc Impact Universal Joint Set CR-MO 1/4 3/8 1/2 Drive Swivel Adapter 50252 ATE American Tool Exchange 3-piece impact universal joint set provides essential flexibility for automotive and mechanical work. Constructed from drop-forged, heat-treated Chrome Molybdenum (CR-MO) steel, these tools are built for high-torque impact use. Each piece features a ball swivel design for long-lasting durability and a corrosion-resistant black phosphate coating to withstand tough garage environments. This professional-quality set includes three drive sizes to cover a wide range of applications. SKU 50252.