Mitsubishi VCMT080204-MV NX2525 | Cermet Turning Insert for Steel Finishing
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VCMT080204-MV NX2525
Mitsubishi Materials | High-Speed Steel Finishing & Mirror Surface Specialist
Mirror Finishing for Carbon & Alloy Steels
The Mitsubishi VCMT080204-MV NX2525 is a 35° diamond Cermet turning insert engineered for high-speed precision finishing. The NX2525 grade is a non-coated Cermet that provides exceptional chemical stability, effectively preventing Built-Up Edge (BUE). With its 7° positive relief angle and MV (Medium-V) chipbreaker, this long-tail finishing insert is the professional choice for achieving superior surface integrity and mirror-like textures in CNC lathe steel turning and precision boring.
NX2525 Cermet Grade | MV Precision Breaker | High-Speed Finish Solution
Technical Code Identification
35° Diamond
7° Relief Angle
M-Class Tolerance
Countersink Hole
8mm Edge
2.38mm Thick
0.4mm Radius
Medium Breaker
ISO (Metric) vs ANSI (Inch) Comparison
| Feature Spec | ISO (Metric) | ANSI (Inch Equivalent) |
|---|---|---|
| Model Number | VCMT080204-MV | VCMT 1.51.51-MV |
| Inscribed Circle (IC) | 4.76 mm | 0.1875" (3/16") |
| Corner Radius | 0.4 mm | 0.0157" (1/64") |
NX2525 Cermet Advantage
The NX2525 Cermet (Ceramic-Metal) grade is Mitsubishi's premier choice for finishing steel. Unlike tungsten carbide, Cermet does not have a high affinity for the workpiece material. This prevents metal sticking to the edge, resulting in much cleaner cuts, high resistance to oxidative wear, and a longer tool life during high-speed finishing operations.
MV Medium-V Chipbreaker
The MV chipbreaker is designed for light-to-medium finishing duties. It provides stable chip control even at low depths of cut. In internal boring, the MV geometry ensures that chips are curled tightly and evacuated easily, protecting the finished internal bore from scratches and thermal damage.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Low Carbon Steel (A36/1018) | 180 - 400 m/min | 0.05 - 0.20 mm/rev | 0.3 - 1.5 mm |
| Alloy Steel (4140/8620) | 150 - 320 m/min | 0.05 - 0.15 mm/rev | 0.3 - 1.2 mm |
COMPATIBLE HOLDERS
Optimized for SVJCR/L 08 external holders or precision Small Diameter Boring Bars.
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