Our Premier range of high quality impact sockets has been consolidated to form one of the most complete ranges available to the automotive technician.All sockets are WallDrive and allow transfer of up to 30% more torque to the fixing before the risk of damage to the corners of the hexagon. This also permits damaged fixings to be easily tackled. All sockets are manufactured from the very highest quality materials with either manganese phosphate or electrodeposition finish for corrosion resistance.Chrome Vanadium steel used on 3/8" and 1/2"Sq drive.Chrome Molybdenum steel used on 3/4" and 1"Sq drive.All models are supplied in storage case or tray and are suitable for use with air impact guns and air operated ratchet wrenches.Model No:AK5634MType:1/2"Sq DriveContents:10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 24, 27, 30, 32mm (1 of each Standard & Deep), 125mm Extension Bar, Universal Joint