Makita 134833-2 21mm 1/2\" Scaffold Impact Socket with Pin & Ring Makita impact sockets are some of the strongest and long lasting sockets on the market. This Makita 134833-2 1/2 Scaffold Impact Socket with pin and ring is a robust socket for use for scaffolder\'s is an industrial quality socket for air and cordless wrenches. FEATURES High strength for long life With \'O\' ring and retaining pin Application: Impact wrenches. Racking, Automotive, Highways, Maintenance Robust socket for impact wrench Hexagon 6 sided fitment SPECIFICATION Diameter: 21 mm Fitting: 1/2\" Square Overall Length: 52 mm Pack Quantity: 1