Seco Secomax Turning Insert, SNMN Insert, 120408 Insert, Squared, 5 mm Maximum Depth of Cut, 12.7 mm Inscribed Circle, 4.76 mm Thickness, 12.7 mm Width, 12.7 mm Length, 12 Seat, WZ Chipbreaker, 0.8 mm Corner Radius, 5.15 mm Hole Dia, Manufacturers Grade: CBN300, ANSI Code: SNMN432S-WZ-85 CBN300, ISO Code: SNMN120408S-WZ-85 CBN300, 90 deg Included Angle, 0 deg Relief Angle, PCBN, Uncoated, Material Grade: K, For Use On: Cast Iron