Mitsubishi TNMG160404L-2G NX2525 | Left-Hand Cermet Finishing Insert
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TNMG160404L-2G NX2525
Mitsubishi Materials | The Mirror-Finish Specialist (Left-Hand)
Product Overview
The Mitsubishi TNMG160404L-2G NX2525 is a high-speed Cermet turning insert designed for Left-Hand (L) tool paths. Built with the advanced NX2525 grade, this titanium-based material offers unparalleled resistance to chemical wear and oxidation. As a premier long-tail precision tool, it is the industry standard for finishing steel components where a high-gloss surface and tight dimensional tolerances are required during CNC machining.
High-Speed Cermet | Left-Hand Geometry | 2G Precision Finish
Code Identification Breakdown
Triangular
0° Relief
Tolerance
Hole/Chip
16.5mm Edge
4.76mm Thick
0.4mm Radius
Left-Hand
Finish Breaker
Metric (ISO) vs Inch (ANSI) Equivalent
| Tech Specification | ISO Model (Metric) | ANSI Model (Inch) |
|---|---|---|
| Part Number | TNMG160404L-2G | TNMG 331L 2G |
| Inscribed Circle (IC) | 9.525 mm | 0.375" (3/8") |
| Nose Radius | 0.4 mm | 0.016" (1/64") |
NX2525 Cermet Grade
The NX2525 grade is a specialized titanium-based composite. Cermet offers higher hardness at high temperatures compared to tungsten carbide, effectively eliminating built-up edge (BUE). This makes it perfect for achieving "ready-to-ship" surface finishes directly from the lathe turning process.
2G Finish Geometry
The 2G chipbreaker is a G-class finishing geometry optimized for light cutting loads. It provides stable chip evacuation even at shallow depths of cut ($a_p$), preventing "bird-nesting" and protecting the workpiece from scratches.
Recommended Cutting Parameters
| Material Group | 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 |
| Ductile Cast Iron | 120 - 250 m/min | 0.08 - 0.20 mm/rev | 0.1 - 0.8 mm |
REQUIRED LEFT-HAND HOLDERS
This is a Left-Hand (L) insert. Use standard MTJNL 1616 or WTJNL 1616 holders.
Shop Left-Hand 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.