External Hex, External Torx, Internal Torx, Hex, TX
Imperial, AF, Torx, Metric, SAE
9 mm, 14 mm, 5/16 ", 3/8 ", 11/16 "
3/4, 1, 1-1/2, 2-1/2, 1/2
9.53, 6.35, 38.1, 25.4, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide