Mitsubishi SPMW090304 NX2525 | High-Gloss Cermet Milling Insert
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SPMW090304 NX2525
Mitsubishi Materials | The Mirror-Finish Cermet Specialist
The Mitsubishi SPMW090304 NX2525 is a high-precision cermet milling insert engineered for high-speed finishing. By utilizing the NX2525 grade, which balances Titanium Carbide and Titanium Nitride, this insert provides a superior mirror-finish on carbon and alloy steels. If you are looking for long-lasting edge sharpness and resistance to built-up edge (BUE), this cermet solution is the industry standard for dry milling finishing operations.
ISO Code Breakdown
Square
11° Relief
M-Class Tol.
With Hole
9.525mm Size
3.18mm Thick
0.4mm Rad.
Technical Specifications
| Feature | Metric (ISO) | Inch (ANSI) |
|---|---|---|
| Model Number | SPMW090304 | SPMW 32.51 |
| Inscribed Circle ($IC$) | 9.525 mm | 0.375" |
| Thickness ($S$) | 3.18 mm | 0.125" |
| Nose Radius ($RE$) | 0.4 mm | 0.016" |
Material: NX2525 Cermet Grade
The NX2525 grade is a premium uncoated cermet known for its exceptional chemical stability at high temperatures. Unlike traditional tungsten carbide, cermet has a low affinity for steel, which virtually eliminates built-up edge (BUE). This makes it the ideal material for high-speed finishing where maintaining precise tolerances and a glossy surface finish is the primary objective.
Geometry: W-Type (Flat Top with Hole)
The W-Type geometry refers to a flat-top face with a countersunk mounting hole. This design is optimized for screw-on milling cutters. Because there is no molded chipbreaker, the cutting edge is incredibly sharp and strong, perfect for light depths of cut and high-feed finishing paths.
Recommended Cutting Parameters
| Workpiece Material | Speed ($v_c$) | Feed ($f_z$) |
|---|---|---|
| Carbon Steel / Alloy Steel | 150 - 300 m/min | 0.05 - 0.15 mm/t |
| Gray Cast Iron | 120 - 250 m/min | 0.10 - 0.20 mm/t |