Mitsubishi TNMG160408L-2G NX2525 | Left-Hand Cermet Insert
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TNMG160408L-2G NX2525
Mitsubishi Materials | The Mirror-Finish Cermet Standard (Left-Hand)
Precision Engineering Overview
The Mitsubishi TNMG160408L-2G NX2525 represents the pinnacle of Cermet turning insert technology. Designed for Left-Hand (L) tool holders, this insert features the NX2525 grade—a titanium-based composite that excels in high-speed finishing and semi-finishing. As a specialized long-tail precision tool, it is engineered to deliver a superior surface luster on carbon and alloy steels, outperforming standard carbide in CNC machining environments where oxidation resistance is critical.
High-Velocity Finishing | P05-P20 Application | 0.8mm Corner Radius
Model Code Identification
Triangular Shape
0° Relief Angle
M-Class Tolerance
Hole/Chip Feature
16.5mm Edge
4.76mm Thick
0.8mm Radius
Left-Hand
Finishing Breaker
ISO (Metric) vs ANSI (Inch) Standards
| Specification | ISO Model (Metric) | ANSI Model (Inch) |
|---|---|---|
| Model ID | TNMG160408L-2G | TNMG 332L 2G |
| Inscribed Circle | 9.525 mm | 0.375" (3/8") |
| Corner Radius | 0.8 mm | 0.031" (1/32") |
NX2525 Cermet Advantage
The NX2525 Cermet grade provides extreme thermal stability and lower affinity for ferrous metals compared to tungsten carbide. This eliminates built-up edge (BUE), making it the primary choice for lathe turning operations requiring mirror-like surface finishes and high-speed efficiency.
2G Chipbreaker Logic
The 2G chipbreaker is an G-class geometry specifically designed for light cutting loads. It maintains excellent chip evacuation even at shallow depths of cut, ensuring consistent dimensional accuracy and preventing surface scratching in CNC machining cycles.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed per Rev ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Carbon Steel (S45C) | 180 - 420 m/min | 0.10 - 0.35 mm/rev | 0.2 - 1.5 mm |
| Alloy Steel (SCM440) | 150 - 350 m/min | 0.08 - 0.30 mm/rev | 0.2 - 1.2 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.