External Torx, External Hex, Internal Torx, TX, Hex
Metric, AF, Torx, Imperial, SAE
5 mm, 16 mm, 5/16 ", 11/16 ", 26 mm
6.35, 19.05, 9.53, 38.1, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide