1/2" impact socket set with sockets 10, 13, 15, 17, 19, 21, 24 and 27 mm along with a 1/4" Hex to 1/2" Square converter - ideal for use with Impact Drivers as well as Impact Wrenches. Features Includes 8 popular sized impact sockets 1/4" Hex to 1/2" Square adaptor means you can use with Impact Wrenches and Impact Drivers Black phosphate Coated to resist corrosion Longer life Robust, high strength Suitable for high torque applications Includes 1x 10mm 1/2" Impact Socket 1x 13mm 1/2" Impact Socket 1x 15mm 1/2" Impact Socket 1x 17mm 1/2" Impact Socket 1x 19mm 1/2" Impact Socket 1x 21mm 1/2" Impact Socket 1x 24mm 1/2" Impact Socket 1x 27mm 1/2" Impact Socket 1x Carry Case 1x 1/4" Hex to 1/2" Square Adaptor.