3-7/8", 4-1/2", 4-3/8", 5-3/8", 4-1/4"
21 mm, 22 mm, 55 mm, 26 mm, 15 mm
Whitworth, Imperial, Metric, SAE, SAE/Metric
Chrome Vanadium Steel, Aluminium Bronze, Beryllium Copper, Drop Forged Carbon Steel, Alloy Steel
Chrome, Mirror, Full Polish, Black Chrome, Satin
BS192:1982.
DIN 3113, DIN 3113., DIN3113, ASME B107.6
BS192:1982., ASME B107.6.