VNMG-332-EM nc-TiAIN Coated Carbide Insert ~ EM - Semi-Finishing Geometry. Stainless Steel Material ~ EM -Double-side chipbreaker with M-class tolerance serves to reduce cutting force and workpiece adhesion when machining stainless steel. ~ Possesses higher feed and depth of cut capability than EF chipbreaker. ~ XAF795: Unique grade material with near perfect wear resistance and high temperature resistance. ~ The nc-TiAIN coating, ultrafine grain substrate, and unique surface treatment make this grade suitable for high precision cutting of "difficult to machine" materials, such as stainless steel, etc. ~ ISO Insert No. VNMG160408EM ~ I.C. is 3/8" ~ L is 5/8" ~ S is 3/16" ~ d is 0.15" ~ r is .0315".