External Torx, Internal Torx, External Hex, TX, Hex
Metric, AF, Imperial, Torx, SAE
9/32 ", 8 mm, 7/16 ", 5/8 ", 3/16 "
1, 1-1/2, 2-1/2, 1/2, 3/8
12.5, 25.4, 6.35, 19.05, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide