Internal Torx, External Torx, External Hex, TX, Hex
Metric, Torx, AF, Imperial, SAE
3/16 ", 5/8 ", 34 mm, 35 mm, 11/16 "
1/2, 3/4, 1, 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