Makita 134855-2 3/4\" Square Drive Impact Socket O Ring & Pin 27mm x 53.5mm Makita impact sockets are some of the strongest and long lasting sockets on the market. The special production process results in a high material density so that the caps are extremely tough. This range features a retaining pin and \'O\' ring for securing the socket to the drive. FEATURES High strength for long life With \'O\' ring and retaining pin Application: Impact wrenches. Racking, Automotive, Highways, Maintenance Robust socket for impact wrench SPECIFICATION Diameter: 27 mm (M18) Length: 53.5 mm  Toolholder: 3/4\" inch (Square) Pack Quantity: 1