Internal Hex, Internal Torx, External Hex, Hex, TX
AF, Imperial, Torx, SAE, Metric
7/32 ", 9/32 ", 13/16 ", 11/16 ", 10 mm
1/4, 3/4, 1-1/2, 2-1/2, 3/8
12.5, 25.4, 19.05, 6.35, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphated, Oxidised, Black Phosphate, Black Oxide