Tungaloy Expands AH3225 Milling Grade with Triple Nano Coating for Enhanced Durability and Performance!

By Ashutosh Arora


Monday 13 October 2025, 7:14:11 AM


Tungaloy-NTK America Inc. has announced a broader rollout of its AH3225 PVD-coated grade across multiple milling tool platforms. This enhanced availability includes integration into high-feed cutters (MillQuadFeed), face milling tools (DoOcto), shoulder milling (TungTriShred), and ISO insert styles like SDKN42** and TEEN32**. The expansion reflects Tungaloy’s commitment to delivering advanced cutting solutions across a wide range of machining needs.

At the heart of the AH3225 grade is Tungaloy’s proprietary Triple Nano Coating, which brings together three crucial attributes: exceptional wear resistance, fracture toughness, and oxidation resistance. This multi-layer coating structure helps the tool maintain its integrity under high stress, reducing micro-chipping and ensuring stability during long production runs. As a result, operators can expect more consistent dimensional accuracy and longer tool life, even under demanding cutting conditions.

One of the key benefits of the AH3225 grade is its ability to resist both crater and flank wear, which typically cause tool failure in milling operations. By minimizing these wear mechanisms, the tool delivers more consistent machining quality and reduces the frequency of tool replacements. This helps manufacturers lower downtime, maintain tighter tolerances over extended runs, and achieve higher throughput.

Furthermore, the AH3225 grade is designed to support aggressive cutting parameters. By enabling higher cutting speeds and feed rates without sacrificing tool integrity, it helps reduce cycle times and improve productivity. When matched with the appropriate tool body—for example, high-feed, face, or shoulder milling cutters—this grade can deliver performance gains across a variety of applications.

Compatibility is another advantage. Because AH3225 is available across several milling tool families and ISO insert formats, users can deploy the same advanced coating technology across different machining tasks without needing to redesign tooling setups. This flexibility makes it easier for shops to standardize on a high-performance grade while benefiting from the appropriate cutter geometry for each job.

In steel and stainless steel machining, where wear, heat, and material hardness place strong demands on cutting tools, the AH3225 grade is particularly well-suited. Its enhanced resistance to oxidation means it holds up better at elevated temperatures, while the nano-coating layers protect the tool’s substrate from stress-related failures. Together, these traits make AH3225 a compelling choice for manufacturers seeking to balance performance, reliability, and cost efficiency.

Overall, Tungaloy’s extended deployment of the AH3225 grade underscores its dedication to leveraging coating innovation in cutting tools. By bringing this advanced grade to multiple milling platforms and insert geometries, Tungaloy offers machining professionals a tool solution that delivers strength, stability, and versatility in one package.



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