External Torx, Internal Torx, External Hex, TX, Hex
AF, Torx, Imperial, SAE, Metric
7/32 ", 13/16 ", 5/16 ", 5 mm, 11/16 "
1/2, 1, 1-1/2, 2-1/2, 3/4
19.05, 25.4, 6.35, 38.1, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide