Internal Torx, Internal Hex, External Hex, TX, Hex
AF, Metric, Imperial, Torx, SAE
7 mm, 9/32 ", 15/16 ", 9/16 ", 9 mm
1/2, 3/4, 1-1/2, 1, 2-1/2
19.05, 38.1, 9.53, 6.35, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide