Internal Hex, Internal Torx, TX, Hex, External Torx
Torx, Metric, AF, Imperial, SAE
11/32 ", 9/16 ", 7/32 ", 5/16 ", 7/16 "
3/4, 1-1/2, 1, 1/2, 2-1/2
9.53, 38.1, 19.05, 6.35, 12.5
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphated, Oxidised, Black Oxide, Black Phosphate