Pramet Turning Insert, CNMG Insert, 644 Insert, Diamond, 10 mm Maximum Depth of Cut, 19.05 mm Inscribed Circle, 6.35 mm Thickness, 19.3 mm Length, 19 Seat, Negative Rake, RM Chipbreaker, 1.6 mm Corner Radius, 7.94 mm Hole Dia, Manufacturers Grade: T9315, ANSI Code: CNMG 644-RM:T9315, ISO Code: CNMG 190616E-RM:T9315, 80 deg Included Angle, 0 deg Relief Angle, Carbide, Al2O3, Material Grade: H, K, P, For Use On: Hardened Steel, Cast Iron and Steel