Sunnen K3-NM35 CBN Stone

Sunnen K3-NM35 CBN Stone is a metal-bond, cubic boron nitride honing stone in Sunnen’s K3 Series, engineered for high-efficiency bore finishing and durable performance in continuous production. As a member of the K3 line, the NM35 code denotes a dedicated NM-series configuration designed to deliver fast material removal and a consistent, high-quality bore finish across a broad range of materials, from softer steels to hardened alloys. Sunnen positions K3 abrasives as a solution for automotive, aerospace, and general manufacturing environments, emphasizing reliable stock removal, repeatable finishes, and longer abrasive life to help reduce cycle times on precision bore work. Designed for use with Sunnen K3-series honing systems, the NM35 stone leverages a metal-bond CBN abrasive to sustain cutting action under demanding loads while maintaining dimensional stability and surface finish quality. Sunnen describes the K3 CBN abrasives as delivering high cutting efficiency and consistent results across a wide range of materials, a combination that helps maintain tight tolerances in production environments.