Pramet Turning Insert Pramet, CNMM Insert, 644 Insert, Diamond, 13.3 mm Maximum Depth of Cut, 19.05 mm Inscribed Circle, 6.35 mm Thickness, 19.3 mm Length, 19 Seat, Negative Rake, HR Chipbreaker, 1.6 mm Corner Radius, 7.94 mm Hole Dia, Manufacturers Grade: T8345, ANSI Code: CNMM 644-HR:T8345, ISO Code: CNMM 190616E-HR:T8345, 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