Internal Hex, External Hex, Hex, TX, 6-Point
Torx, AF, Imperial, Metric, SAE
5 mm, 9/32 ", 15/16 ", 5/8 ", 33 mm
1/4, 1, 1-1/2, 2-1/2, 1/2
19.05, 9.53, 6.35, 25.4, 12.5
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphated, Oxidised, Black Phosphate, Black Oxide