Mil-Spec, Oversized, Beveled, Standard, Large Outside Diameter
Phenolic Resin, Steel, Titanium, Stainless Steel, Nylon
9.5 mm, 11.1 mm, 23/32", 40 mm, 5 1/2"
1.625", 0.391", 0.219", 0.25", 0.172"
0.9 mm, 0.4 mm, 1.6 mm, 0.16 mm, 0.28 mm
BS 4320, DIN 7980, DIN 7603A, DIN 6797A, BS 4320B