External Torx, Internal Torx, External Hex, Hex, TX
Imperial, Torx, Metric, AF, SAE
15/16 ", 13/16 ", 9/16 ", 5/8 ", 28 mm
6.35, 19.05, 38.1, 9.53, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide