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New addition of 36 negative M‑class inserts for the MV9005

April 1, 2026

MITSUBISHI MATERIALS U.S.A. CORPORATION announces the release of new chip breakers for M‑class negative inserts. The MV9005 grade features a specially engineered carbide substrate with exceptionally high hardness, which helps prevent plastic deformation of the cutting edge—even during high‑speed machining of superalloys.​ This substrate is further enhanced with a high‑aluminum‑content (Al,Ti)N coating layer. The coating maintains superior hardness while significantly improving oxidation resistance, resulting in excellent overall wear resistance.​ To ensure optimal performance in Ni‑based heat‑resistant alloys, a surface‑smoothing treatment has been applied, providing superior welding resistance.​ Supporting these technologies is a newly developed bonding layer designed for high adhesion strength. This layer effectively prevents chipping and peeling of the coating from the carbide substrate.​

Tool News

Features

  • The new chip breakers for M‑class negative inserts have been designed with larger land and rake angles compared to the previous series, delivering stable and reliable cutting performance in heat‑resistant alloys.
  • ​The MV9005 lineup will include 36 new negative M‑class inserts in C, D, S, T, and V styles, along with larger positive IC sizes in the same insert configurations​
  • These insert configurations will be available with LS, MS, RS, and MA chip‑breaker options​
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