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 →
Need Help With Mitsubishi Inserts?
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This Mitsubishi insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.