External Torx, Internal Hex, External Hex, Hex, TX
Torx, Metric, AF, Imperial, SAE
5/8 ", 7/8 ", 9/16 ", 3/16 ", 29 mm
12.5, 25.4, 38.1, 9.53, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphated, Oxidised, Black Phosphate, Black Oxide