Teng Tools sockets are manufactured from strong chrome vanadium steel in accordance with ISO 9000 and AS954. They provide excellent torque, whilst reducing the risk of rounding fasteners. This TTX23 socket set consisting of 20 regular and long bits for internal TX heads. It also includes 2 adaptors and a 2mm Hex mini screwdriver. Supplied complete in a handy storage tray. This 23 piece set contains the following 8 x 40mm TORX Bits with 10mm Hex Drive TX20, TX25, TX27, TX30, TX40, TX45, TX50, and TX55. 2 x 40mm TORX Bits with 12mm Hex Drive TX60 and TX70. 8 x 75mm TORX Bits with 10mm Hex Drive TX20, TX25, TX27, TX30, TX40, TX45, TX50, and TX55. 2 x 75mm TORX Bits with 12mm Hex Drive TX60 and TX70. 1 x 1/2in Drive 10mm Hex Bit Adaptor. 1 x 1/2in Drive 12mm Hex Bit Adaptor. 1 x 2mm Hex Mini Screwdriver.