Internal Torx, External Hex, TX, Hex, External Torx
Imperial, Metric, AF, Torx, SAE
11 mm, 15/16 ", 9/16 ", 3/16 ", 34 mm
1, 3/4, 1/2, 2-1/2, 1-1/2
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