Mitsubishi TNMG160404R-2G NX2525 | Finishing Cermet Insert
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TNMG160404R-2G NX2525
Mitsubishi Materials | High-Speed Cermet Finishing Specialist
The Mitsubishi TNMG160404R-2G NX2525 is a high-performance Cermet turning insert engineered for ultra-fine finishing. Unlike standard carbide, the NX2525 Cermet grade provides exceptional resistance to oxidation and built-up edge, making it the ideal long-tail precision tool for achieving mirror finishes. The 2G chipbreaker and Right-Hand (R) geometry are optimized for light depths of cut in CNC machining of carbon and alloy steels.
High-Speed Finishing | Mirror Surface Quality | Right-Hand Orientation
Code Identification Breakdown
Triangular
0° Relief
Tolerance
Hole/Chip
16.5mm Edge
4.76mm Thick
0.4mm Radius
Right-Hand
Finishing Breaker
Metric (ISO) vs Inch (ANSI) Reference
| Technical Spec | ISO (Metric) | ANSI Equivalent |
|---|---|---|
| Part Number | TNMG160404R-2G | TNMG 331R 2G |
| IC Diameter | 9.525 mm | 0.375" (3/8") |
| Nose Radius | 0.4 mm | 0.016" (1/64") |
NX2525 Cermet Advantage
The NX2525 grade is a specialized titanium-based indexable turning insert material. It offers incredible thermal stability and lower affinity for steel, which prevents built-up edge (BUE). This grade is the industry standard for maintaining high dimensional accuracy over long production runs.
2G Fine-Finishing Breaker
The 2G chipbreaker is a precision geometry designed for very light finishing. It provides excellent chip control even at low depths of cut, ensuring that swarf is broken effectively to protect the workpiece surface finish during lathe turning operations.
Recommended Cutting Parameters
| Workpiece Material | Speed ($v_c$) | Feed per Rev ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Carbon/Alloy Steel | 150 - 350 m/min | 0.05 - 0.15 mm/rev | 0.1 - 1.0 mm |
| Nodular Cast Iron | 120 - 250 m/min | 0.08 - 0.20 mm/rev | 0.1 - 0.8 mm |
RIGHT-HAND HOLDER PAIRING
This insert is a Right-Hand (R) orientation. It requires standard MTJNR or WTJNR turning tool holders (Size 16).
Browse MTJNR Holders →
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.