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