Mitsubishi CPMH090304L-F NX2525 Cermet Finishing Insert (10pcs)
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CPMH090304L-F NX2525
Mirror Finish Cermet | NX2525 High-Speed Grade | F-Finishing Geometry
The Science of Surface Excellence
NX2525 Grade (Premium Cermet): The NX2525 is a micro-grain cermet grade that combines excellent wear resistance with high fracture toughness. Because cermet does not react chemically with steel, it prevents material welding at the tip. This results in a "mirror-like" surface finish and exceptional dimensional consistency over long production runs in P-Class (Steel) materials.
F Chipbreaker (Fine-Cut Specialist): The F-breaker is a dedicated finishing geometry. It features a sharp cutting edge and a specific chip pocket depth that manages fine, thin chips at shallow depths of cut. This prevents "nesting" and ensures that the finished surface is not scratched by retreating chips.
L (Left-Hand) Orientation: This is a Left-hand designated insert. Ensure your tool holder matches this orientation (typically used in specific internal boring or back-turning operations).
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CPMH090304L-F | 9.525 mm | 3.18 mm | 0.40 mm |
| Imperial | CPMH321L-F | 3/8" | 1/8" | 0.0157" (1/64") |
Recommended Steel Finishing Parameters
*Cermet thrives at high speeds. Avoid low-speed machining to prevent edge built-up.
| Material Group | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Low Carbon Steel | 180 - 350 m/min | 0.05 - 0.15 mm/r | 0.10 - 1.00 mm |
| Alloy Steel (Hardened) | 150 - 280 m/min | 0.04 - 0.12 mm/r | 0.10 - 0.80 mm |
Compatible Left-Hand Holders
Paired perfectly with SCLCL 09-series external holders or boring bars:
Shop Left-Hand 09 HoldersPro-Tip: Cermet NX2525 vs. Carbide VP15TF
NX2525 Cermet: Best for high-speed finishing where surface brightness is the #1 priority. Not recommended for heavy interrupted cuts.
VP15TF Carbide: Choose this for unstable setups or interrupted cuts. It is tougher than cermet but cannot match the surface gloss of NX2525.
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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.