Seco Indexable Milling Insert, SEMX Insert, 1204 Insert, Squared, 12.7 mm Inscribed Circle, 4.76 mm Thickness, 12.7 mm Width, 12.7 mm Length, M15 Chipbreaker, Manufacturer's Grade: MK1500, ANSI Code: SEMX1204AFTN-M15 MK1500, Neutral Hand, Carbide, CVD Coated, Cast Iron, Non-Ferrous Metals, Plastics and Tough-to-Machine Materials Material Application