External Torx, Internal Torx, External Hex, Hex, TX
Imperial, Metric, AF, Torx, SAE
7/32 ", 9/32 ", 6 mm, 7/8 ", 11/16 "
1-1/2, 2-1/2, 1/4, 3/8, 1/2
12.5, 6.35, 19.05, 25.4, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Oxide, Black Phosphate