ILCO CU29 Milling Cutter. Material HSS. Diameter 2.375″. Thickness .27″. Hole diameter .5″. Cutter profile angle A=45, B=45, F In. .064. Used on machine ILCO 029A. The teeth on a milling cutter are formed using a grinding or milling machine operation on the basic cutter blank. ILCO milling cutters are manufactured using high-quality steels and offer greater durability than rotary file cutters.