Mitsubishi VBMT160408-MV NX2525 | Cermet Steel Turning Insert
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VBMT160408-MV NX2525
Mitsubishi Materials | High-Speed Steel Finishing & Mirror Surface Texture
Precision Cermet Performance with Enhanced Edge Strength
The Mitsubishi VBMT160408-MV NX2525 is a 35° diamond Cermet turning insert designed for high-speed finishing where surface integrity is paramount. Unlike standard carbide, the NX2525 Cermet grade has a low affinity for steel, effectively eliminating Built-Up Edge (BUE). With its reinforced 0.8mm corner radius and MV (Medium-V) chipbreaker, this long-tail finishing insert allows for higher feed rates while maintaining the legendary "mirror finish" associated with Mitsubishi cermet technology.
NX2525 Cermet Grade | MV Medium-Duty Breaker | 0.8mm Radius for Feed Stability
Technical Code Identification
35° Diamond
5° Relief Angle
M-Class Tolerance
Hole with 60° Countersink
16mm Edge
4.76mm Thick
0.8mm Radius
Medium Breaker
ISO (Metric) vs ANSI (Inch) Comparison
| Feature Spec | ISO (Metric) | ANSI (Inch Equivalent) |
|---|---|---|
| Model Number | VBMT160408-MV | VBMT 332-MV |
| Inscribed Circle (IC) | 9.525 mm | 0.375" (3/8") |
| Corner Radius | 0.8 mm | 0.0315" (1/32") |
NX2525 Cermet Advantage
The NX2525 grade is a non-coated Cermet that provides exceptional oxidation resistance. Its chemical inertness makes it the best finishing insert for carbon and alloy steels, as it prevents the "smearing" of material on the tool tip. This results in significantly longer tool life during high-speed finishing and maintains critical tolerances in CNC lathe operations.
MV Medium-V Chipbreaker
The MV chipbreaker is designed for versatility. By pairing it with a 0.8mm radius, you gain the ability to increase your feed rate without compromising chip control. The 16mm edge ($VBMT 332$) provides the necessary rigidity to handle the slightly higher cutting forces required for medium-depth profiling in steel and ductile irons.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Low Carbon Steel (A36/1018) | 180 - 400 m/min | 0.10 - 0.30 mm/rev | 0.3 - 2.0 mm |
| Alloy Steel (4140/8620) | 150 - 320 m/min | 0.08 - 0.25 mm/rev | 0.3 - 1.5 mm |
COMPATIBLE HOLDERS
Designed for SVJBR/L 16 or SVVBN 16 external holders and heavy-duty Internal Boring Bars.
Shop 16mm Profiling Holders →
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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.