The HiKOKI 41 piece Impact Socket amp; Bit Set contains a selection of the most popular sizes. Suitable for cordless and corded screwdrivers, impact drivers and hammer drills. Supplied in a hand carry case. Contains: 10 x 1/2in Hex Impact Sockets: 8, 10, 11, 12, 13, 14, 17, 19, 21 amp; 22mm 3 x 25mm Philips Bits: PH1, PH2 amp; PH33 x 25mm Pozidriv Bits: PZ1, PZ2 amp; PZ37 x 25mm TORX Bits: T10, T15, T20, T25, T27, T30 amp; T407 x 25mm Tamper TORX Bits: TH10, TH15, TH20, TH25, TH27, TH30 amp; TH404 x 25mm Slotted Bits: 3, 4, 5 amp; 6mm4 x 25mm Hex Bits: 3, 4, 5 amp; 6mm 1 x 1/2in to 1/4in Adaptor1 x 1/2in Hex Socket Adaptor 75mm 1 x 1/4in Quick-Change Bit Holder 60mm