KYOCERA Turning Insert, 2-Sided, CNMG Insert, 431 Insert, Diamond, 1/2 in Inscribed Circle, 3/16 in Thickness, 12 Seat, Negative Rake, TK Chipbreaker, 1/64 in Corner Radius, 0.203 in Hole Dia, Manufacturer's Grade: PR1310, ANSI Code: CNMG431TK PR1310, ISO Code: CNMG120404TK PR1310, 80 deg Included Angle, 0 deg Relief Angle, Neutral Cutting, Carbide, MEGACOAT, Material Grade: S, For Use On: Heat Resistant Alloys