Internal Torx, External Torx, External Hex, Hex, TX
Imperial, Metric, AF, Torx, SAE
7/16 ", 7/32 ", 9/32 ", 15/16 ", 5/8 "
1/4, 3/4, 1, 1-1/2, 2-1/2
6.35, 25.4, 9.53, 38.1, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide