Iscar Milling Insert, Series: 16MILL, ONMU Insert, 080608 Insert, Octagonal, 20.2 mm Inscribed Circle, 6 mm Thickness, 0.8 mm Corner Radius, 45 deg Lead Angle, Manufacturer's Grade: IC928, ANSI Code: ONMU 080608-TN-MM, ISO Code: ONHU/ONMU-08-TN-MM