Pramet Turning Insert, CNMG Insert, 432 Insert, Diamond, 4 mm Maximum Depth of Cut, 12.7 mm Inscribed Circle, 4.76 mm Thickness, 12.9 mm Length, 12 Seat, Negative Rake, M Chipbreaker, 0.8 mm Corner Radius, 5.16 mm Hole Dia, Manufacturers Grade: T9315, ANSI Code: CNMG 432W-M:T9315, ISO Code: CNMG 120408W-M:T9315, 80 deg Included Angle, 0 deg Relief Angle, Carbide, Al2O3, Material Grade: H, K, P, For Use On: Hardened Steel, Cast Iron and Steel