Standard, Narrow, Mil-Spec, Beveled, Large Outside Diameter
Nylon, Phenolic Resin, Brass, Alloy Steel, Titanium
18 mm, 2 3/16", 1 37/64", 15/16", 2 3/4"
0.75", 0.563", 0.625", 0.875", 1.125"
1.01 mm, 8.1 mm, 0.3 → 0.25 mm, 1.65 - 1.90 mm, 1.08 mm
BS 4320:1968, BS 3410, DIN 127B, ASME B18.21.1, DIN 6798J