Sandvik Coromant Drilling Insert, Series: CoroDrill 881, 881..C-GM1 Insert, 040308 Insert, Rectangle Shape, 1/4 in Inscribed Circle, 1/8 in Thickness, 53 Chipbreaker, 0.0314 in Corner Radius, 0.1102 in Diameter Hole, Manufacturers Grade: 1044, ANSI Code: 881-04 03 08M-C-GM1 1044, Right Hand of Insert, ISO Code: 881-04 03 08M-C-GM1 1044, Asymmetrical Point, Medium Feed, For Use On: Cast Iron, Heat Resistant Materials, Hardened Materials, Steel, Stainless Steel and Super Alloys, Carbide, TiAlN, Material Grade: H, K, M, N, P, S