Sandvik Coromant Turning Insert, 2-Sided Basic Shape, Series: T-Max P, WNGA Insert, 431 Insert, Trigon, 0.008 in Maximum Depth of Cut, 1/2 in Inscribed Circle, 0.187 in Thickness, 08 Seat, Negative Rake, MM Chipbreaker, 0.016 in Corner Radius, 0.2029 in Hole Dia, Manufacturers Grade: 7025, ANSI Code: WNGA431S0330A 7025, ISO Code: WNGA080404S01030A 7025, 80 deg Included Angle, 0 deg Relief Angle, Neutral Cutting, CBN, Uncoated, Material Grade: H, For Use On: Hardened Steel