Sandvik Coromant Turning Insert, Series: T-Max P, SNMM Insert, 543 Insert, Squared, 0.374 in Maximum Depth of Cut, 5/8 in Inscribed Circle, 1/4 in Thickness, 5/8 in Width, 5/8 in Length, 15 Seat, Negative Rake, PR Chipbreaker, 0.047 in Corner Radius, 1/4 in Hole Dia, Manufacturers Grade: 4315, ANSI Code: SNMM 543-PR 4315, ISO Code: SNMM 15 06 12-PR 4315, 90 deg Included Angle, 0 deg Relief Angle, Neutral Cutting, Carbide, TiCN/Al2O3/TiN, Material Grade: K, P, For Use On: Cast Iron and Steel