Internal Torx, External Hex, TX, Hex, External Torx
Torx, AF, Imperial, Metric, SAE
12 mm, 7 mm, 18 mm, 7/16 ", 11/16 "
1-1/2, 2-1/2, 1/4, 3/8, 1/2
38.1, 12.5, 9.53, 6.35, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide