Standard, Mil-Spec, Oversized, Beveled, Large Outside Diameter
Phenolic Resin, Stainless Steel, Brass, Alloy Steel, Titanium
12 mm, 20 mm, 2 3/16", 1 37/64", 15/16"
13 mm, 6.4 mm, 0.25", 0.75", 0.875"
NL-19, Plain, Armor Coat, Zinc Yellow, Black Oxide
3.4 mm, 5/32", 4.6 mm, 0.55 mm, 2.2 mm