Mitsubishi DCMT070204-FV NX2525 Cermet Turning Insert for Mirror Finish
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DCMT070204-FV NX2525
Mirror-Finish Cermet | FV Precision Chipbreaker | High-Gloss Specialist
The Ultimate Finishing Solution for Steel
NX2525 Cermet Grade: The NX2525 is a premium Cermet (Titanium Carbonitride based) grade. Unlike tungsten carbide, Cermet does not react chemically with steel workpieces at high temperatures. This prevents material from welding to the edge, ensuring the insert maintains a sharp profile for much longer and produces a high-gloss, superior surface finish ($Ra$) that carbide cannot match.
FV Chipbreaker (Fine Finishing): The FV (Finishing-V) chipbreaker is engineered specifically for light depths of cut. Its unique geometry breaks chips into small, manageable "6" shapes even at high speeds, preventing "bird-nesting" and protecting the workpiece from scratches during the final pass.
0.4mm Precision Radius: The "04" nose radius provides the perfect balance between edge sharpness and strength, allowing for tight tolerances on small components and high-accuracy profiling.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCMT070204-FV | 6.35 mm | 2.38 mm | 0.40 mm |
| Imperial | DCMT21.51-FV | 1/4" | 3/32" | 0.0157" (1/64") |
Recommended Cutting Parameters
*NX2525 requires higher speeds for optimal finish. Avoid low-speed machining to prevent chipping.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Mild Steel (1018/1045) | 150 - 350 m/min | 0.05 - 0.15 mm/r | 0.10 - 1.00 mm |
| Alloy Steel (4140/SCM440) | 120 - 280 m/min | 0.05 - 0.12 mm/r | 0.10 - 0.80 mm |
Compatible Tool Holders
Optimized for use with SDJCR/L or SDUCR/L 07-series holders:
Shop SDJCR 07 HoldersPro-Tip: Cermet vs. Carbide
NX2525 (Cermet): Best for final passes. It provides much better tool life at high speeds in finishing applications and leaves a "brand-new" shine on the metal.
VP15TF (Carbide): Switch to VP15TF if you are doing interrupted cuts or roughing. Cermet is more brittle and may chip under heavy impact or vibration.
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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.