Narrow, Mil-Spec, SAE, Beveled, Large Outside Diameter
PEEK, Steel, Nylon, Phenolic Resin, Titanium
45 mm, 2 1/2", 26 mm, 23 mm, 3 3/4"
14.5 mm, 16.5 mm, 1.063", 1.172", 0.906"
1.2 mm, 3.5 mm, 8.1 mm, 1.5 mm, 2.2 mm
BS 4463, BS 4320, DIN 7603A, DIN 6797J, BS 4320B