Pramet Turning Insert, DCMT Insert, 21.51 Insert, Diamond, 0.079 in Maximum Depth of Cut, 1/4 in Inscribed Circle, 3/32 in Thickness, 0.307 in Length, 7 Seat, Positive Rake, FM Chipbreaker, 1/64 in Corner Radius, 0.114 in Hole Dia, Manufacturers Grade: T9325, ANSI Code: DCMT 21.51-FM T9325, ISO Code: DCMT 070204E-FM T9325, 55 deg Included Angle, 7 deg Relief Angle, Carbide, Material Grade: K, M, P, S, For Use On: Cast Iron, Stainless Steel, Steel and Titanium/Super Alloys