Mitsubishi VNMG160404-SH NX2525 Cermet Insert | VNMG 331
Price shown is a starting point. Contact us for a precise quote based on your requirements.
Mitsubishi VNMG160404-SH NX2525
High-Precision Cermet Grade for Superior Steel Finishing
The Mitsubishi VNMG160404-SH NX2525 is a premium 35° rhombic negative-type cermet turning insert. Unlike standard carbide, the NX2525 cermet grade is designed for high-speed finishing of steel, providing a mirror-like surface finish and exceptional dimensional accuracy. This VNMG 331-SH ANSI equivalent is the professional choice for CNC lathe finishing where thermal resistance and anti-welding properties are critical.
Technical Nomenclature Breakdown
Decoding the precision engineering behind the VNMG160404-SH model code:
| Code | Detailed Specification |
|---|---|
| V | Shape: 35° Rhombic (Diamond) |
| N | Clearance Angle: 0° (Negative Insert) |
| M | Tolerance Class: Medium Precision Class |
| G | Feature: Double-Sided with Hole |
| 16 | Size: ~16mm Cutting Edge Length |
| 04 | Thickness: 4.76mm |
| 04 | Nose Radius: 0.4mm (Super Fine Finishing) |
| SH | Chipbreaker: Finishing for Soft Steel / Low Depth of Cut |
Global Identification: Metric vs. Inch
This precision finishing tool is standardized for global machining centers:
- ISO (Metric): VNMG160404-SH
- ANSI (Imperial): VNMG 331-SH
NX2525 Grade & SH Chipbreaker Analysis
NX2525 Cermet Grade: Cermet (Ceramic + Metal) offers a high chemical affinity for steel, which prevents "built-up edge" (BUE). The NX2525 micro-grain cermet provides the perfect balance between toughness and wear resistance, allowing for dry machining and achieving exceptional high surface finish results that carbide cannot match.
SH Chipbreaker: The SH geometry is specifically designed for finishing applications. Its sharp cutting edge and narrow groove ensure excellent chip control even at very small depths of cut, preventing the "long stringy chips" common when machining carbon steel.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Carbon Steel (Finishing) | 150 - 300 m/min | 0.05 - 0.20 mm/rev | 0.2 - 1.5 mm |
| Alloy Steel (Finishing) | 120 - 250 m/min | 0.05 - 0.15 mm/rev | 0.2 - 1.2 mm |
System Integration
Ensure maximum stability for finishing by pairing this VNMG insert with high-rigidity holders.
Shop Compatible DVJNR/L Tool HoldersPro-Tip: Cermet vs. Carbide
NX2525 Cermet is superior to carbide for light finishing because it maintains a sharp edge longer and resists chemical wear. However, for heavy roughing or interrupted cuts, cermet can be brittle; in those cases, we recommend switching to UE6110 or MC6025 carbide grades.
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.