Mitsubishi SEEN1504AFTN1 NX2525 Milling Insert | Mirror Finish Cermet
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SEEN1504AFTN1 NX2525
Mitsubishi Materials | The Mirror Finishing Cermet Specialist
The Mitsubishi SEEN1504AFTN1 NX2525 is a high-performance cermet milling insert engineered for precision finishing and semi-finishing of steel. Utilizing the advanced NX2525 cermet grade, this insert is designed to deliver a mirror surface finish that carbide simply cannot match. Its superior resistance to built-up edge (BUE) and oxidation makes it the industry standard for high-speed CNC milling where dimensional accuracy and aesthetic quality are paramount.
Packaging: Genuine Mitsubishi Box of 10 Inserts
ISO Designation Decoded
Square 90°
20° Relief
E-Class Tol.
No Chipbreaker
15.875mm Size
4.76mm Thick
Lead/Flat Angle
Technical Specifications
| Feature | Metric Designation | Inch (ANSI) Designation |
|---|---|---|
| Model Name | SEEN1504AFTN1 | SEEN 53 AFTN1 |
| Inscribed Circle ($IC$) | 15.875 mm | 5/8" |
| Thickness ($S$) | 4.76 mm | 3/16" |
| Material Class | NX2525 Micro-Grain Cermet (TiCN Base) | |
NX2525 Cermet Advantage
The NX2525 grade is a specialized cermet (ceramic-metallic) material. Unlike standard carbide, it possesses a low affinity for steel, which virtually eliminates built-up edge. It maintains high hardness at elevated cutting temperatures, allowing for high-speed finishing of carbon and alloy steels while providing long tool life and exceptional gloss on the finished part.
AFTN Geometry for Finishing
The AFTN geometry is optimized for 45° face milling. The sharp edge and high relief angle (20°) significantly reduce cutting resistance, which is critical for cermet grades to prevent vibration. This geometry ensures that even at low feed per tooth, the insert "slices" rather than "rubs," resulting in superior surface finish quality.
Recommended Cutting Parameters
High-Speed Finishing (Dry Machining Preferred)
| Material Group | Cutting Speed ($v_c$) | Feed per Tooth ($f_z$) | Depth of Cut ($a_p$) |
|---|---|---|---|
| Low Carbon Steel | 200 - 400 m/min | 0.08 - 0.20 mm/t | 0.1 - 1.5 mm |
| Alloy Steel / Tool Steel | 150 - 300 m/min | 0.05 - 0.15 mm/t | 0.1 - 1.0 mm |
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.