Pramet Turning Insert, CNMG Insert, 431 Insert, Diamond, 3 mm Maximum Depth of Cut, 12.7 mm Inscribed Circle, 4.76 mm Thickness, 12.9 mm Length, 12 Seat, Negative Rake, NM Chipbreaker, 0.4 mm Corner Radius, 5.16 mm Hole Dia, Manufacturers Grade: T8315, ANSI Code: CNMG 431-NM:T8315, ISO Code: CNMG 120404E-NM:T8315, 80 deg Included Angle, 0 deg Relief Angle, Carbide, Material Grade: H, K, M, N, P, S, For Use On: Hardened Steel, Cast Iron, Stainless Steel, Aluminum, Steel and Titanium/Super Alloys