Mitsubishi DCMT070202-MV NX2525 Cermet Turning Insert for High-Gloss Finish
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DCMT070202-MV NX2525
Mirror-Finish Cermet | MV Medium-Finishing Chipbreaker | 0.2mm Radius
High-Speed Aesthetic Perfection
NX2525 Cermet Grade: The NX2525 is a premium Cermet grade (Titanium Carbonitride). Cermet provides superior resistance to crater wear and oxidation compared to tungsten carbide. Because of its low affinity for steel, it produces an unmatched surface luster, making it the ideal choice for final visible components in automotive or aerospace industries.
MV Chipbreaker (Versatile Finishing): The MV (Medium-V) chipbreaker is a highly adaptable geometry. It is designed to bridge the gap between fine finishing and light semi-finishing. It provides stable chip breaking across a wider range of feed rates than the FV series, ensuring process security in automated CNC production.
0.2mm Nose Radius: The "02" radius is engineered for precision. It minimizes radial cutting forces, which prevents chatter on small-diameter parts and allows for the machining of sharp internal shoulders.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCMT070202-MV | 6.35 mm | 2.38 mm | 0.20 mm |
| Imperial | DCMT21.50.5-MV | 1/4" | 3/32" | 0.0078" (1/128") |
Recommended Cutting Parameters
*Cermet requires higher surface speeds (Vc) to reach the "plastic zone" for a perfect finish. Avoid vibration.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon Steel (1045) | 180 - 380 m/min | 0.04 - 0.12 mm/r | 0.15 - 1.20 mm |
| Alloy Steel (4140) | 150 - 300 m/min | 0.05 - 0.10 mm/r | 0.15 - 1.00 mm |
Compatible Tool Holders
Maximum performance with 07-series SDJCR or SDUCR holders:
Shop 07 Series HoldersPro-Tip: Cermet vs. Carbide
NX2525 (Cermet): Use for the final pass at high speeds. It will outlast carbide in finishing and provide a significantly brighter surface.
VP15TF (Carbide): Switch to carbide for roughing or if your part has an interrupted cut (like a keyway). Cermet is brittle and may chip under impact.
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Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.