KYOCERA Indexable Cut-Off Insert, 1-Cutting Edge Metric Positive Rake, Series: KTKB, TKN Insert, #3 Insert, 3.1 mm Cutting Width, 0.25 mm Corner Radius, Manufacturer's Grade: PR930, ANSI Code: TKN3PR930, ISO Code: TKN3, Neutral Hand of Insert, Carbide, PVD-TiCN Coated, Material Grade: P, M