Internal Torx, External Hex, Hex, TX, 6-Point
AF, Imperial, Torx, Metric, SAE
7/32 ", 5.5 mm, 11/16 ", 3/16 ", 9 mm
1/2, 3/4, 1-1/2, 2-1/2, 1/4
19.05, 12.5, 25.4, 6.35, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphatized, Oxidised, Black Phosphate, Black Oxide