External Torx, Internal Hex, Internal Torx, TX, Hex
Torx, AF, Metric, Imperial, SAE
9/32 ", 6 mm, 1 ", 13/16 ", 5/16 "
1/4, 1, 2-1/2, 3/8, 1-1/2
6.35, 12.5, 19.05, 9.53, 38.1
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide