Seco, 03280984, Turning, Insert, Series: CNMG, CNMG Insert, Diamond Shape, 12.7 mm Inscribed Circle, 4.76 mm Thickness, 11.67 mm Length, Negative Rake, MR3 Chipbreaker, 1.2 mm Corner Radius, 5.15 mm Diameter Hole, Manufacturer's Grade: TM3501, ISO Code: CNMG120412, 80 deg Included Angle, 15 deg Relief Angle, Neutral Cutting Direction, Carbide, TiCN/Al2O3