Internal Torx, External Torx, External Hex, TX, Hex
Torx, AF, Imperial, Metric, SAE
11/16 ", 7/8 ", 9/16 ", 18 mm, 29 mm
6.35, 9.53, 38.1, 25.4, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphatized, Oxidised, Black Oxide, Black Phosphate