Internal Torx, External Torx, External Hex, TX, Hex
Torx, AF, Metric, Imperial, SAE
5 mm, 11/16 ", 9 mm, 23 mm, 1-1/2 "
6.35, 25.4, 19.05, 38.1, 12.5
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide