Pramet Turning Insert, TPUN Insert, 323 Insert, Triangular, 4.8 mm Maximum Depth of Cut, 9.525 mm Inscribed Circle, 1/8 in Thickness, 16.5 mm Length, 16 Seat, Positive Rake, 1.2 mm Corner Radius, Manufacturers Grade: 6640, ANSI Code: TPU 323 6640, ISO Code: TPUN 160312 6640, 60 deg Included Angle, 11 deg Relief Angle, Carbide, CVD Coated, Material Grade: K, M, P, S, For Use On: Cast Iron, Stainless Steel, Steel and Titanium/Super Alloys