Pramet Turning Insert, CNMA Insert, 432 Insert, Diamond, 0.331 in Maximum Depth of Cut, 1/2 in Inscribed Circle, 3/16 in Thickness, 0.508 in Length, 12 Seat, Negative Rake, 1/32 in Corner Radius, 0.203 in Hole Dia, Manufacturers Grade: T5305, ANSI Code: CNMA 432:T5305, ISO Code: CNMA 120408:T5305, 80 deg Included Angle, 0 deg Relief Angle, Carbide, Al2O3, Material Grade: H, K, P, For Use On: Hardened Steel, Cast Iron and Steel