Standard, Narrow, Mil-Spec, SAE, Large Outside Diameter
Phenolic Resin, Steel, Alloy Steel, Stainless Steel, Titanium
2 3/16", 1 37/64", 3/4", 11/16", 15/16"
1.281", 0.5", 0.75", 0.875", 1.125"
0.3 → 0.25 mm, 0.6 mm, 3.5 mm, 1.65 - 1.90 mm, 1.08 mm
BS 3410, BS 4320:1968, DIN 127B, ASTM F436, ASME B18.22.1
ASTM F844