Teng tools sockets are manufactured from strong chrome vanadium steel in accordance with iso9000 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 2 mm hex mini screwdriver supplied complete in a handy storage tray this 23 piece set contains the following 8 x 40 mm torx bits with 10 mm hex drive tx20 tx25 tx27 tx30 tx40 tx45 tx50 and tx552 x 40