Standard, Mil-Spec, Beveled, Oversized, Large Outside Diameter
Nylon, Brass, Steel, Titanium, Phenolic Resin
40 mm, 66 mm, 26 mm, 23 mm, 5 1/2"
1.375", 0.391", 1.563", 1.313", 1.188"
1.45 mm, 5.8 mm, 0.16 mm, 0.28 mm, 3.5 mm
DIN 127B, DIN 7603, DIN 7980, BS 4320G, BS 4320B