Seco Turning Insert, CNMG Insert, 190616 Insert, Diamond, 12 mm Maximum Depth of Cut, 19.05 mm Inscribed Circle, 6.35 mm Thickness, 19 Seat, Negative Rake, MR7 Chipbreaker, 1.6 mm Corner Radius, 7.92 mm Hole Dia, Manufacturers Grade: TP1501, ANSI Code: CNMG644-MR7 TP1501, ISO Code: CNMG190616-MR7 TP1501, 80 deg Included Angle, 0 deg Relief Angle, Neutral Cutting, Carbide, TiCN/Al2O3, Material Grade: P, For Use On: Steel