Coated PcBN Insert machines hardened steels.

Press Release Summary:

Premium grade BNC150 combines heat-resistant, fine-grain PcBN with wear-resistant, TiCN ceramic coating to extend tool life and ensure consistent surface finishes. All corners are brazed individually to strengthen cutting edge. Available in negative, positive, and wiper styles, BNC150 is suited for continuous high-speed machining, as well as light interrupted cutting.

Original Press Release:

Sumitomo Develops New BNC150 Coated PcBN Grade For Turning Hardened Steels

Mount Prospect, IL - (December 9, 2003) The new coated PcBN premium grade BNC150 from Sumitomo machines hardened steels at high speeds and with consistent surface finishes.

Ideal for continuous high-speed machining, (v=350 - 850 SFM), the BNC150 also performs light interrupted cutting. The BNC150's heat-resistant PcBN, combined with a special TiCN ceramic coating, ensure excellent surface finishes in every machining situation. This wear-resistant coating and fine grain PcBN substrate also work to extend tool life by as much as 40% compared to other PcBN grades.

The BNC150's cutting edge is further strengthened through the incorporation of Sumitomo's new brazing technology. All corners are brazed individually.

The BNC150 is available in negative, positive and wiper styles.

For more information, contact Sumitomo Electric, 1001 Business Center Drive, Mount Prospect, IL 60056, Phone: (800) 880-0619, Fax: (847) 635-9335, e-mail:, or visit the Sumitomo Web site at

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