EDGE²® Spherical Ball Nose (SBN) inserts feature 2 usable cutting edges for optimal finish quality and thick carbide construction for heat and stress absorption. Insert life allows for extended, unattended finishing runs with quality surface finishes optimized by grinding process. Also suited for tip-cutting, 3D profiling, semi-finishing, and light roughing, fully thru-hardened SBN cutter bodies designed for strength and longevity as well as minimal runout due to accuracy and centrality.