Internal Torx, External Hex, TX, Hex, External Torx
AF, Torx, Metric, Imperial, SAE
8 mm, 9 mm, 5/16 ", 25 mm, 10 mm
1/2, 1, 1-1/2, 2-1/2, 3/4
6.35, 12.5, 25.4, 19.05, 38.1
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide