Pramet Turning Insert, TNMG Insert, 331 Insert, Triangular, 4 mm Maximum Depth of Cut, 9.525 mm Inscribed Circle, 3/16 in Thickness, 16.5 mm Length, 16 Seat, Negative Rake, NMR Chipbreaker, 0.4 mm Corner Radius, 3.81 mm Hole Dia, Manufacturers Grade: T7335, ANSI Code: TNMG 331-NMR T7335, ISO Code: TNMG 160404E-NMR T7335, 60 deg Included Angle, 0 deg Relief Angle, Neutral Cutting, Carbide, Material Grade: M, P, S, For Use On: Stainless Steel, Steel and Titanium/Super Alloys