Mitsubishi VCMT160404 NX2525 Cermet Insert | VCMT 331
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Mitsubishi VCMT160404 NX2525
Premium Cermet Turning Insert for High-Speed Finishing
The Mitsubishi VCMT160404 NX2525 is a professional-grade 35° rhombic positive displacement cermet turning insert. Engineered specifically for steel finishing, the NX2525 grade provides excellent oxidation resistance and low affinity for workpiece materials, preventing built-up edge (BUE) and ensuring a mirror-like high surface finish on CNC lathe components.
This VCMT 331 ANSI equivalent insert is the industry standard for precision dimensional control in stable cutting conditions.
Model Code Identification
| Code | Technical Specification |
|---|---|
| V | Shape: 35° Rhombic (Diamond) |
| C | Clearance Angle: 7° (Positive) |
| M | Tolerance Class: Medium Precision |
| T | Feature: Hole & Single-Sided Chipbreaker |
| 16 | Size: Inscribed Circle (Approx. 16mm edge length) |
| 04 | Thickness: 4.76mm |
| 04 | Nose Radius: 0.4mm (Fine Finishing) |
Metric vs. Inch Comparison
This CNC turning tool follows global standard sizing:
- ISO (Metric): VCMT160404
- ANSI (Imperial): VCMT 331
Material & Chipbreaker Details
NX2525 Grade (Cermet): A Ti(C, N) based uncoated cermet. It is optimized for high-speed finishing where thermal stability and chemical inertness are critical. It significantly reduces tool wear when cutting carbon steel and alloy steel.
MV Chipbreaker: Designed for light cutting to medium-light loads. The geometry ensures superior chip control at lower depths of cut, preventing long, stringy chips from scratching your finished surface.
Cutting Parameters (Recommended)
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Carbon Steel | 150 - 350 m/min | 0.05 - 0.20 mm/rev | 0.2 - 1.5 mm |
| Alloy Steel | 100 - 250 m/min | 0.05 - 0.15 mm/rev | 0.2 - 1.0 mm |
Perfect Compatibility
This insert is designed to fit standard SVJCR and SVVCN tool holders.
Shop Compatible Tool HoldersPro-Tip: Grade Comparison
NX2525 is your first choice for the ultimate glossy finish on steel. However, if your application involves high-speed continuous cutting of stainless steel, consider MP7035. For interrupted cutting or roughing where toughness is required over surface finish, a coated carbide grade like UE6020 is recommended.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.