Pramet Turning Insert, CNMG Insert, 321 Insert, Diamond, 3 mm Maximum Depth of Cut, 9.525 mm Inscribed Circle, 3.18 mm Thickness, 9.7 mm Length, 9 Seat, Negative Rake, NF Chipbreaker, 0.4 mm Corner Radius, 3.81 mm Hole Dia, Manufacturers Grade: T6310, ANSI Code: CNMG 321-NF:T6310, ISO Code: CNMG 090304E-NF:T6310, 80 deg Included Angle, 0 deg Relief Angle, Carbide, Material Grade: H, K, M, N, P, S, For Use On: Hardened Steel, Cast Iron, Stainless Steel, Aluminum, Steel and Titanium/Super Alloys