External Torx, External Hex, Internal Hex, TX, Hex
AF, Torx, Imperial, Metric, SAE
7/8 ", 7 mm, 5/16 ", 11/16 ", 9 mm
9.53, 25.4, 12.5, 6.35, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide