General description The Bahco S530T 53 Piece Pass-Through Socket Set is designed for easy access to nuts where the fastener needs to pass through the socket. Made from high-performance alloy steel with a matte chrome finish, this set includes a comfortable multi-position pass-through flexible head ratchet and comes in a high-density polythene (HDPE) case. Technical specifications Material: High-performance alloy steel Finish: Matte chrome Number of pieces: 53 Compatibility and accessories 13 x 1/2in Pass-Through Sockets: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 24mm 10 x 1/2in Hex Shank Ring Driver Adaptors: 8, 9, 10, 11, 12, 13, 14, 15, 16 & 17mm 9 x 1/2in E-TORX Ring Driver Adaptors: TE8, TE10, TE11, TE12, TE14, TE16, TE18, TE20 & TE22 4 x 5/16in x 25mm Hex Bits: 7, 8, 10 & 12mm 4 x 5/16in x 25mm TORX Tamper Bits: TR40, TR45, TR50 & TR55 2 x 1/4in x 25mm Hex Bits: 5 & 6mm 4 x 1/4in x 25mm TORX Tamper Bits: TR20, TR25, TR27, TR30 1 x 19mm (3/4in) Hex Drive x 1/4in Bit Adaptor