Pramet Turning Insert, WNMG Insert, 431 Insert, Trigon, 0.197 in Maximum Depth of Cut, 1/2 in Inscribed Circle, 3/16 in Thickness, 8 Seat, Negative Rake, SI Chipbreaker, 1/64 in Corner Radius, 0.203 in Hole Dia, Manufacturers Grade: T9325, ANSI Code: WNMG 431L-SI T9325, ISO Code: WNMG 080404EL-SI T9325, 80 deg Included Angle, 0 deg Relief Angle, Carbide, Material Grade: K, M, P, S, For Use On: Cast Iron, Stainless Steel, Steel and Titanium/Super Alloys