Internal Torx, Internal Hex, External Hex, Hex, TX
Metric, AF, Imperial, Torx, SAE
9 mm, 7/16 ", 3/16 ", 25 mm, 30 mm
3/4, 1, 1-1/2, 3/8, 2-1/2
38.1, 25.4, 19.05, 6.35, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide