Mitsubishi VNMG160404-MP MC6025 Carbide Insert | VNMG 331
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Mitsubishi VNMG160404-MP MC6025
High-Stability CVD Coated Carbide for General Steel Turning
The Mitsubishi VNMG160404-MP MC6025 is a world-class 35° rhombic negative-type carbide turning insert. Engineered with the revolutionary MC6025 Nano-Texture CVD coating, this insert is the industry standard for stable steel machining. This VNMG 331-MP ANSI equivalent is designed to balance edge toughness with high-speed wear resistance, making it the perfect choice for CNC lathe operations involving carbon and alloy steels.
Model Nomenclature Breakdown
Understanding the precision behind the VNMG160404-MP identification code:
| Code | Definition |
|---|---|
| V | Shape: 35° Rhombic (Diamond) |
| N | Clearance Angle: 0° (Negative) |
| M | Tolerance Class: Medium Precision |
| G | Feature: Double-Sided with Hole |
| 16 | Size: ~16mm Cutting Edge Length |
| 04 | Thickness: 4.76mm |
| 04 | Nose Radius: 0.4mm (Fine-to-Medium Finishing) |
| MP | Chipbreaker: Medium-Range Pro-Choice (Enhanced Control) |
Global Identification: Metric vs. Inch
This high-efficiency turning insert is recognized internationally under both ISO and ANSI standards:
- ISO (Metric): VNMG160404-MP
- ANSI (Imperial): VNMG 331-MP
MC6025 Grade & MP Chipbreaker Detail
MC6025 Grade: This grade features Mitsubishi’s Nano-Texture Technology. It is a CVD coated carbide specifically optimized for general steel turning. The coating provides an ultra-smooth surface that resists crater wear and adhesive buildup, ensuring long tool life in ISO P10-P30 applications.
MP Chipbreaker: The "MP" (Medium Pro) breaker is specifically designed for steel machining. It features a unique rake angle that provides superior chip control even at fluctuating depths of cut, reducing the risk of "bird-nesting" and protecting the high surface finish of your workpiece.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Carbon Steel (P) | 180 - 320 m/min | 0.10 - 0.35 mm/rev | 0.5 - 3.5 mm |
| Alloy Steel (SCM) | 150 - 280 m/min | 0.10 - 0.30 mm/rev | 0.5 - 3.0 mm |
System Compatibility
Pair this VNMG insert with our high-rigidity tool holders for maximum performance.
Shop Compatible DVJNR/L Tool HoldersSelection Tip: Grade Comparison
MC6025 is the ultimate all-rounder for steel. For high-speed continuous cutting, upgrade to MC6015. If your work involves heavy interrupted cuts or high vibration, consider the tougher MC6035. For stainless steel applications, the US735 or VP15TF are superior alternatives.
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.