The Bahco S530T 53 Piece S530T Pass-Through Socket Set. Made from high performance alloy steel with a matte chrome finish. They have easy access to nuts where the fastener needs to pass through the socket. Supplied with a comfortable multi position pass through flexible head ratchet and high density polythene (HDPE) case. Contains: 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.1 x 19mm (3/4in) Hex Drive x 5/16in Bit Adaptor.1 x Pass-Through Flexible Head Ratchet.1 x 75mm Pass-Through Extension Bar.1 x 19mm (3/4in) Hex Quick Release Ad