Beveled, Oversized, Large Outside Diameter, SAE, Standard
Titanium, PEEK, Phenolic Resin, Brass, Nylon
19 mm, 1 1/16", 1 5/16", 1 3/16", 7/16"
6.5 mm, 16.5 mm, 20.2 mm, 1.172", 3.125"
5.8 mm, 0.6 mm, 1.5 mm, 1.6 mm, 8.1 mm
BS 4320:1968, DIN 127B, BS 4463, BS 4320B, BS 4320