Mitsubishi SNMG090304 NX2525 Turning Insert | Cermet Finishing
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SNMG090304 NX2525
Mitsubishi Materials | High-Gloss Cermet Precision Finishing
The Mitsubishi SNMG090304 NX2525 is a high-performance cermet turning insert designed for high-precision finishing. Utilizing the NX2525 cermet grade, it offers a perfect balance of toughness and wear resistance. Unlike standard carbide, this TiCN-based cermet has a low affinity for workpiece materials, virtually eliminating built-up edge (BUE) and producing a superior mirror surface finish on carbon and alloy steels.
Packaging: Genuine Mitsubishi Box of 10 Inserts
ISO Designation Decoded
Square 90°
0° Relief
M-Class Tol.
Double Sided
9.5mm Size
3.18mm Thick
0.4mm Radius
Technical Specifications
| Feature | Metric Designation | Inch (ANSI) Designation |
|---|---|---|
| Model Name | SNMG090304 | SNMG 321 |
| Inscribed Circle ($IC$) | 9.525 mm | 0.375" (3/8") |
| Thickness ($S$) | 3.18 mm | 0.125" (1/8") |
| Corner Radius ($RE$) | 0.4 mm | 0.016" (1/64") |
NX2525 Cermet Grade
The NX2525 grade is a premium micro-grain cermet. It provides high thermal stability and chemical resistance, making it the industry standard for high-speed finishing of steel. It retains sharp cutting edges longer than coated carbide, ensuring dimensional accuracy throughout large production runs.
Standard Chipbreaker Geometry
The SNMG geometry provides a double-sided configuration for maximum economy. When paired with Mitsubishi's precision chip control, this insert excels at light finishing to medium cutting. It ensures consistent chip breaking at small depths of cut, which is essential for maintaining a high surface finish quality.
Recommended Cutting Parameters
Optimized for Steel Finishing (Dry Machining Preferred)
| Material Group | Cutting Speed ($v_c$) | Feed Rate ($f$) | Depth of Cut ($a_p$) |
|---|---|---|---|
| Mild / Carbon Steel | 150 - 300 m/min | 0.05 - 0.20 mm/rev | 0.2 - 1.5 mm |
| Alloy Steel | 120 - 250 m/min | 0.05 - 0.15 mm/rev | 0.2 - 1.0 mm |
TOOL HOLDER COMPATIBILITY
Pairs perfectly with standard PSSNR/L or DSBNR/L turning tool holders for 09-sized inserts.
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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.