Grade Recommended for Hardened Steel Turning

Mitsubishi Materials’ BC8020 coated CBN grade features 31 specific geometries designed to handle turning applications in hardened steel that are unstable or interrupted cutting.

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Mitsubishi Materials’ BC8020 coated cBN grade features 31 specific geometries designed to handle turning applications in hardened steel. Inserts offered in GA style hone BC8020 is designed for applications that are unstable or interrupted cutting. The company recommends the coated grade for more severe applications in which chipping may occur in common CBN grades. 

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