Mitsubishi TCMT090204 NX2525 | Mirror Finish Cermet Insert
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TCMT090204 NX2525
Mitsubishi Materials | High-Gloss Cermet Finishing Specialist
The Mitsubishi TCMT090204 NX2525 is a high-precision turning cermet insert engineered for superior surface quality. Utilizing the NX2525 uncoated cermet grade, this insert provides exceptional chemical stability when machining carbon and alloy steels. If you are looking for a mirror-finish and tight dimensional control, this long-tail precision tool effectively eliminates built-up edge (BUE) in high-speed finishing operations.
ISO Code Identification
Triangular
7° Relief
M-Class Tol.
C-Sink Hole
9.6mm Edge
2.38mm Thick
0.4mm Rad.
Technical Specifications
| Parameter | ISO (Metric) | ANSI (Inch) Equivalent |
|---|---|---|
| Model Number | TCMT090204 | TCMT 21.51 |
| Inscribed Circle ($IC$) | 5.56 mm | 0.218" |
| Thickness ($S$) | 2.38 mm | 0.094" |
| Nose Radius ($RE$) | 0.4 mm | 0.016" |
Grade: NX2525 Cermet Excellence
The NX2525 grade is a premium uncoated cermet. Cermets (Ceramic + Metal) are chemically inert, meaning they do not react with steel at high temperatures. This prevents crater wear and adhesion, allowing the TCMT090204 to maintain its sharp edge. It is the premier choice for high-speed finishing where a glossy surface finish is mandatory.
Chipbreaker: General Purpose Finishing
Designed for light depths of cut, this geometry provides excellent chip evacuation. It prevents "bird-nesting" during long finishing passes on small diameters, ensuring your workpiece remains scratch-free and your CNC cycle remains uninterrupted.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed Rate ($f$) |
|---|---|---|
| Carbon Steel / Alloy Steel | 150 - 300 m/min | 0.05 - 0.15 mm/rev |
| Gray Cast Iron | 120 - 250 m/min | 0.10 - 0.20 mm/rev |
Compatible Tooling
Optimized for use with Mitsubishi STFCR/L Boring Bars and STGCR/L External Holders.
Shop Matching 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.