Seco Milling Insert, OFEN Insert, 070405 Insert, Octagon Shape, 18 mm Inscribed Circle, 4.76 mm Thickness, 18 mm Width, 18 mm Length, MD16-LF Chipbreaker, 0.5 mm Corner Radius, Neutral Rake, Manufacturer's Grade: CBN200, ANSI Code: OFEN070405TN-MD16-LF CBN200, Right/Left Hand of Insert, PCBN, Uncoated, Cast Iron, Non-Ferrous Metals, Plastics and Tough-to-Machine Materials Material Application