External Torx, Internal Torx, Hex, TX, 6-Point
Torx, AF, Imperial, Metric, SAE
8 mm, 6 mm, 5/16 ", 7 mm, 5/8 "
1/4, 2-1/2, 1/2, 3/4, 3/8
25.4, 38.1, 19.05, 6.35, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide