4-1/4", 4-5/8", 3-7/8", 4-1/2", 4-3/8"
21 mm, 55 mm, 14 mm, 26 mm, 15 mm
Whitworth, Imperial, Metric, SAE, SAE/Metric
Beryllium Copper, Chrome Vanadium Steel, Aluminium Bronze, Drop Forged Carbon Steel, Alloy Steel
Chrome, Black Oxide, Mirror, Full Polish, Black Chrome
DIN3113, BS192:1982.
DIN 3113, DIN 3113., ASME B107.6
BS192:1982., ASME B107.6.