External Torx, Internal Torx, External Hex, Hex, TX
Imperial, Torx, AF, SAE, Metric
5/8 ", 5 mm, 11 mm, 7/16 ", 25 mm
38.1, 19.05, 25.4, 9.53, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Oxide, Black Phosphate