External Torx, Internal Hex, Internal Torx, Hex, TX
Torx, AF, Imperial, SAE, Metric
5.5 mm, 11/16 ", 9 mm, 33 mm, 1-1/2 "
12.5, 19.05, 6.35, 25.4, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphatized, Oxidised, Black Phosphate, Black Oxide