Milling Tools Inserts. Table of Contents FCT45 R/8/12 MCT45 R/8/12 2 FCTXX MCTXX TWINCUT VARIO 3 45° TWINCUT Face Mills 4–7 Inserts 8 ... Ball Nose Copy Mills – HSS 68 Flat Bottom / Back Draft Mills – HSS 68 Carbide Shank Ball Nose Copy Mills 69 Carbide Shank Flat Bottom/Back Draft Mills 70