Internal Torx, Internal Hex, External Hex, Hex, TX
AF, Metric, Torx, Imperial, SAE
15/16 ", 3/16 ", 5/16 ", 7/16 ", 11 mm
6.35, 25.4, 12.5, 19.05, 38.1
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphatized, Oxidised, Black Phosphate, Black Oxide