Internal Torx, Internal Hex, External Hex, TX, Hex
Torx, Metric, AF, Imperial, SAE
11 mm, 1/4 ", 5/16 ", 25 mm, 11/16 "
1/4, 1-1/2, 3/8, 2-1/2, 3/4
12.5, 6.35, 25.4, 9.53, 38.1
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Oxide, Black Phosphate