Mitsubishi CPMH080204-MV NX2525 Cermet Finishing Insert (10pcs)
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CPMH080204-MV NX2525
Mirror Finish Specialist | NX2525 Cermet Technology | MV Precision Chip Control
The Ultimate Finishing Solution
NX2525 Grade (Precision Cermet): The NX2525 is a titanium-based cermet grade. Cermets are harder than standard carbide and offer superior chemical stability. Because the material does not react with steel at high temperatures, it prevents the workpiece from "sticking" to the edge. This results in incredibly long edge life for finishing passes and a "mirror" surface quality that carbide cannot match.
MV Chipbreaker (High-Versatility Medium): The MV geometry is designed for light to medium cutting. Even though it is a finishing tool, the MV breaker is engineered to handle varied depths of cut while maintaining excellent chip evacuation. It prevents long, bird-nesting chips from scratching your finished surface.
0.4mm (1/64") Radius: The 04 radius is the industry standard for precision finishing. It offers the lowest possible cutting force, which is critical for preventing deflection on small diameters or thin-walled parts.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CPMH080204-MV | 7.94 mm | 2.38 mm | 0.40 mm |
| Imperial | CPMH2.521-MV | 5/16" | 3/32" | 0.0157" (1/64") |
Precision Finishing Parameters
*Cermet thrives at high speeds. For the best mirror finish, run at the upper end of the speed range with light feeds.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon/Alloy Steel | 180 - 350 m/min | 0.05 - 0.20 mm/r | 0.20 - 1.50 mm |
| Ductile Cast Iron | 150 - 300 m/min | 0.08 - 0.25 mm/r | 0.30 - 1.20 mm |
Compatible Tooling
Standardize your precision setup with SCPCR/L or E-SCLP boring bars:
Shop Finishing HoldersPro-Tip: NX2525 vs. Carbide Grades
NX2525 (The Finisher): Use this when the drawing requires a high surface finish (Ra 0.8 or better) and dimensional stability.
Carbide (The Remover): Switch to carbide for roughing or when the depth of cut exceeds 2.0mm, as cermet is more brittle and susceptible to fracture under heavy shock.
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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.