MILWAUKEE® SHOCKWAVE™ IMPACT DUTY™ Power Bit Socket Adaptors enable users to adapt their Impact Drivers enabling the use of Impact Sockets for driving nuts, bolts and other fasteners. SHOCKWAVE™ IMPACT DUTY™ Power Bit Socket Adaptors are engineered for extreme durability and up to 30x life. Their optimised SHOCK ZONE™ absorbs peak torque and prevents breakage. They are made from proprietary CUSTOM ALLOY 76™ Steel which maximises resistance to wear and shock. The set includes Adaptors for the three most common socket drive sizes (1/4", 3/8" & 1/2"). Features Optimised SHOCK ZONE™ - Absorbs peak torque and prevents breakage, CUSTOM ALLOY 76™ Steel - Maximises resistance to wear and shock, Spring Loaded Ball - Ensures sockets are firmly affixed during applications, Specifications Shank: 1/4"-Hex - With Power Groove, Drive Size:, 1/4''-Socket, 3/8''-Socket, 1/2''-Socket, Length: 50 mm (2’’), Includes SHOCKWAVE™ IMPACT DUTY™ Power Bit Socket Adaptors (x3), 1/4", 3/8", 1/2",