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