SOCKET WRENCH SET; TYPE OF END: DOUBLE HEXAGON; INPUT SIZE: 1/2 IN; END SIZE (MM/IN): 7/8 "; INCH SERIES WITH SQUARE FEMALE SOCKET. MATERIAL: CHROME VANADIUM STEEL SAE 6150, FORGED AND HEAT TREATED. HARDNESS: 42-50 RC. CONDITION OF RECEPTION: POINTS 5 AND 6 OF STANDARD IRAM 5236. LENGTH 42 MM.; MANUFACTURER 1: PROTO; MANUFACTURER 2: GEDORE; MANUFACTURER 3: BAHCO