Internal Torx, External Hex, TX, Hex, External Torx
Torx, Metric, AF, Imperial, SAE
3/16 ", 5.5 mm, 16 mm, 9/16 ", 11/16 "
2-1/2, 1-1/2, 1, 3/4, 3/8
9.53, 19.05, 25.4, 6.35, 38.1
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide