KYOCERA Grooving Insert, General Purpose, Series: GD Series, GDM Insert, 3020 Insert, 3 mm Cutting Width, 4.3 mm Maximum Depth of Cut, PM Chipbreaker, 0.0098 in Corner Radius, 0.1654 in Thickness, 20 mm Length, Manufacturer's Grade: PR1535, ANSI Code: GDM3020N025PM PR1535, Neutral Cutting Direction, Carbide, PVD-MEGACOAT NANO, Material Grade: M, S