Mitsubishi VBMT160404-MV NX2525 | Cermet Finishing Insert
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VBMT160404-MV NX2525
Mitsubishi Materials | The Mirror-Finish Cermet Specialist
Precision Finishing for Carbon & Alloy Steels
The Mitsubishi VBMT160404-MV NX2525 is a 35° diamond Cermet turning insert engineered for ultra-high-speed finishing. The NX2525 grade is a non-coated Cermet that offers exceptional chemical stability, preventing the workpiece material from welding to the edge. With the MV (Medium-V) chipbreaker and a sharp 0.4mm corner radius, this long-tail finishing insert is the industry standard for achieving superior dimensional accuracy and mirror-like surface textures in CNC steel turning.
NX2525 Cermet Grade | MV Precision Breaker | High-Speed Finishing Solution
Technical Code Identification
35° Diamond
5° Relief Angle
M-Class Precision
Cylindrical Hole
16mm Edge
4.76mm Thick
0.4mm Radius
Medium Breaker
ISO (Metric) vs ANSI (Inch) Comparison
| Feature Spec | ISO (Metric) | ANSI (Inch Equivalent) |
|---|---|---|
| Model Number | VBMT160404-MV | VBMT 331-MV |
| Inscribed Circle (IC) | 9.525 mm | 0.375" (3/8") |
| Corner Radius | 0.4 mm | 0.0157" (1/64") |
NX2525 Cermet Advantage
Cermet (Ceramic-Metal) grades like NX2525 provide high wear resistance and a low affinity for steel. Unlike tungsten carbide, cermet does not suffer from adhesive wear at high speeds. This ensures that the cutting edge remains sharp for longer periods, resulting in consistent surface finish quality and precise tolerances across long production runs in Carbon and Alloy steels.
MV Medium-V Chipbreaker
The MV chipbreaker on a cermet substrate is a powerful combination. It is designed to control chips during finish-to-medium profiling. The 16mm edge ($VBMT 331$) provides the stability needed for deep profiling, while the MV geometry curls and breaks chips even at the higher cutting speeds ($v_c$) typically used with cermet tooling.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Low Carbon Steel | 200 - 450 m/min | 0.05 - 0.20 mm/rev | 0.2 - 1.5 mm |
| Alloy Steel (4140) | 150 - 350 m/min | 0.05 - 0.15 mm/rev | 0.2 - 1.2 mm |
COMPATIBLE HOLDERS
Fits SVJBR/L 16 or SVVBN 16 external holders and high-precision Internal Boring Bars.
Shop 16mm Profiling Holders →