Internal Torx, External Hex, TX, Hex, External Torx
AF, Torx, Imperial, SAE, Metric
7/32 ", 5.5 mm, 9 mm, 5/8 ", 12 mm
3/8, 1/4, 1-1/2, 2-1/2, 1
38.1, 6.35, 12.5, 25.4, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide