Internal Torx, External Hex, Hex, TX, 6-Point
Torx, Metric, AF, Imperial, SAE
7/16 ", 8 mm, 7/8 ", 9 mm, 33 mm
1-1/2, 2-1/2, 3/4, 3/8, 1/2
38.1, 25.4, 19.05, 12.5, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide