Internal Torx, External Torx, External Hex, Hex, TX
AF, Metric, Torx, Imperial, SAE
7/32 ", 8 mm, 9/16 ", 7/16 ", 11/16 "
1/4, 3/4, 1-1/2, 2-1/2, 1/2
38.1, 6.35, 9.53, 25.4, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Oxide, Black Phosphate