External Torx, Internal Torx, External Hex, TX, Hex
Imperial, AF, Torx, Metric, SAE
7/32 ", 13/16 ", 5 mm, 3/16 ", 26 mm
3/4, 2-1/2, 1-1/2, 1/2, 3/8
25.4, 9.53, 38.1, 6.35, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Phosphated, Oxidised, Black Phosphate, Black Oxide