Truly indexable finishing inserts have arrived with the new EDGE² spherical ballnose (SBN) system from DAPRA Corp.

SBN inserts feature two usable cutting edges, delivering cost savings and high-quality finishes. Thicker carbide construction enhances heat and stress absorption, and outstanding insert life allows for the long unattended finishing runs—with superior surface finishes reportedly created by an improved grinding process. The SBN series is also excellent for tip-cutting, 3D profiling, semifinishing and light roughing.

Fully through-hardened SBN cutter bodies provide optimal strength and longevity. High accuracy and centrality ensure minimal runout to provide the best finishes and tool life, and a close-tolerance insert pocket produced by EDM removes less body material for improved insert support. Solid carbide and carbide core cutter bodies are available, as are screw-on modular heads and modular extensions.