Internal Torx, External Torx, External Hex, Hex, TX
Metric, AF, Torx, Imperial, SAE
13/16 ", 5 mm, 3/16 ", 9 mm, 11/16 "
3/4, 1, 1-1/2, 2-1/2, 1/2
38.1, 9.53, 19.05, 25.4, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide