Suitable for sump plugs on engines, gearbox and back axle. Contents: Hex key socket: 8, 9, 10, 12, 13, 14 & 17mm Square socket5/16”, 3/8”, – 7, 8, 10, 11, 12, 13 & 14mm Torx socketT45 Triangular socket10mm Spline (TAMPER) socketM16 Square drive socket10mm 3/8” Drive sliding T-handle .