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Sumitomo Introduces Coated Carbide Turning Grade AC420K



Sumitomo Electric Carbide, Inc. has announced the latest addition to its coated carbide grade lineup, insert grade AC420K.

"ISO classified as a K20 grade, the AC420K is designed to perform in cast iron roughing applications involving medium to heavy interruptions," said a company spokesperson. "The AC420K is a new black Sumitomo Super FF (Fine and Flat) CVD coated grade. Its ultra-thick coating layers of TiCN for wear and chipping resistance, and Al2O3 layers for wear and heat resistance can improve conventional cast iron grade tool life. Additionally, the flat surface of the Super FF coating is designed to provide quality chip adhesion resistance."

Along with the AC420K, Sumitomo added the EGZ chipbreaker to its product lineup. The EGZ is a groove style chipbreaker that is suitable for medium- to light-roughing depth of cut (0.070"-0.200") applications with a feed rate range of 0.004-0.020 IPR.

For more information contact:

Sumitomo Electric Carbide, Inc.

1001 Business Center Drive

Mount Prospect, IL 60056

800-950-5202

info@sumicarbide.com

www.sumicarbide.com

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