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Seco Tools has expanded its family of PCBN insert grades for hard part turning. Using a bimodal substrate and nanolaminate coating process, these inserts are designed to extend tool life and increase productivity for a range of applications.

Seco’s PCBN grade chain for materials ranging from ISO H05 to H35 consists of CH0550, CBN060K, CH2540 and CH3515 and is designed for turning hardened steels. The coatings, bimodal DNMG Insert substrate with coarser grain materials, and cutting-edge profiles are designed for long and predictable performance.

CH0550 is designed for prolonged wear resistance in high-speed, continuous H05 cutting. CBN060K is said to excel in continuous to slight interrupted H15 cuts. CH2540 is designed for continuous and moderate interrupted cuts in H25. CH3515 is said to be tough for handling heavy interruptions in H35 operations.

Each of the insert grades is available in common ISO insert geometries in metric and imperial specifications, as well as high-feed wiper geometries.