External Torx, Internal Torx, External Hex, TX, Hex
AF, Imperial, Torx, Metric, SAE
9/16 ", 3/8 ", 5/8 ", 23 mm, 35 mm
9.53, 19.05, 38.1, 25.4, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide