Tungaloy America, 4818336, Drill Insert, Central, Series: FBM-G-C, FBM Insert, 6.50 mm Insert, 0.256 in Inscribed Circle, 4 mm Thickness, 10 mm Width, 6.50 mm Length, G Chipbreaker, 0.80 mm Corner Radius, Manufacturer's Grade: AH725, For Use On: Steel/Stainless Cast Iron/Hard Materials/Aluminum/Non-Ferrous Materials/Super-Alloys/Titanium, Solid Carbide, TiAlN