External Torx, Internal Torx, External Hex, Hex, TX
AF, Torx, Metric, Imperial, SAE
9/32 ", 11 mm, 5/8 ", 15 mm, 11/16 "
1-1/2, 1/2, 1/4, 2-1/2, 3/8
38.1, 9.53, 19.05, 6.35, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Oxide, Black Phosphate