Mitsubishi TPMN160304 NX2525 | High-Gloss Cermet Turning Insert
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TPMN160304 NX2525
Mitsubishi Materials | Large-Scale High-Gloss Finishing Specialist
Industrial Precision for Mirror-Finish Boring
The Mitsubishi TPMN160304 NX2525 is a premium Cermet turning insert designed for high-speed finishing operations. The NX2525 grade is a specialized ceramic-metal composite that offers superior resistance to Built-Up Edge (BUE) and plastic deformation. With its 16mm edge length and 0.4mm radius, this long-tail precision insert is the ultimate choice for achieving mirror-like surface lusters in large-scale CNC boring of carbon and alloy steels.
NX2525 Cermet | TPMN Flat-Top Geometry | 16mm Heavy-Duty Edge
Technical Code Identification
Triangular Shape
11° Positive Relief
M-Class Tolerance
Flat-Top (No Chipbreaker)
16.5mm Edge Length
3.18mm Thick
0.4mm Radius
Cermet Grade
ISO (Metric) vs ANSI (Inch) Comparison
| Feature Spec | ISO (Metric) | ANSI (Inch Equivalent) |
|---|---|---|
| Model Number | TPMN160304 | TPMN 321 |
| Inscribed Circle (IC) | 9.525 mm | 0.375" (3/8") |
| Thickness | 3.18 mm | 0.125" (1/8") |
NX2525 Cermet Technology
The NX2525 Cermet grade provides a unique combination of high wear resistance and superior chemical stability. Because Cermet has a much lower affinity for steel than tungsten carbide, it virtually eliminates chip welding. This allows the tool to maintain a sharp edge for longer durations, resulting in the signature high-gloss finish Mitsubishi is known for.
TPMN Flat-Top Geometry
The TPMN geometry is a flat-top design without a molded chipbreaker. This provides maximum edge strength and a sharp cutting action. It is specifically intended for stable finishing passes where the feed rate is low and the focus is purely on surface quality and dimensional accuracy in steel turning.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Mild/Carbon Steel | 150 - 350 m/min | 0.05 - 0.15 mm/rev | 0.1 - 1.2 mm |
| Alloy Steel (Hardened) | 120 - 280 m/min | 0.05 - 0.12 mm/rev | 0.1 - 1.0 mm |
COMPATIBLE HOLDERS
Designed for high-rigidity CTFPR/L 16 or CTGPR/L 16 boring bars.
Shop 16mm Boring Bars →
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.