This full-range impact socket set supplies both metric and imperial sizes for versatility and convenience in a range of tasks. This comprehensive kit includes extension bars and step-down adaptor accessories to enhance functionality and allows you to tackle tasks involving different fastener sizes without needing multiple sets. Features and Benefits Chrome vanadium steel construction provides strength and durability during demanding applications A black phosphate finish ensures corrosion resistance and reduced marking for product longevity Supplied in a handy storage case for organisation and easy identification Contents 11x 30mm deep x 3/8in. drive single hex (6pt) impact sockets: Metric - 8mm, 10mm, 11mm, 13mm, 14mm, 17mm, 19mm Imperial - 3/8in., 1/2in., 9/16in., 11/16in. 23x 38mm deep x 1/2in. drive single hex (6pt) impact sockets: Metric - 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 17mm, 18mm, 21mm, 24mm, 27mm, 30mm Imperial - 7/16in., 1/2in., 9/16in., 5/8in., 11/16in., 3/4in.,