Internal Torx, Internal Hex, External Hex, TX, Hex
AF, Torx, Metric, Imperial, SAE
12 mm, 3/16 ", 26 mm, 25 mm, 1-1/2 "
3/4, 1-1/2, 2-1/2, 1/2, 3/8
19.05, 38.1, 9.53, 6.35, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Oxide, Black Phosphate