Mitsubishi VNMG160408-GK MC5015 Carbide Insert | VNMG 332
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Mitsubishi VNMG160408-GK MC5015
High-Speed CVD Coated Carbide for Cast Iron Turning
The Mitsubishi VNMG160408-GK MC5015 is a high-performance 35° rhombic negative-type carbide turning insert. Specifically engineered for high-speed cast iron turning, the MC5015 grade features an advanced CVD coating technology that offers superior wear resistance and thermal stability. This VNMG 332-GK ANSI equivalent is the professional's choice for medium-duty cutting and finishing of gray and ductile cast iron.
Model Nomenclature Breakdown
Decoding the precision behind the VNMG160408-GK 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 |
| 08 | Nose Radius: 0.8mm (Medium Roughing/Cutting) |
| GK | Chipbreaker: K-Class Specific (Cast Iron Cutting) |
Global Interchangeability: ISO vs. ANSI
This long-life turning tool is standardized for global machining centers:
- ISO (Metric): VNMG160408-GK
- ANSI (Imperial): VNMG 332-GK
MC5015 Grade & GK Breaker Detail
MC5015 CVD Coating: The MC5015 is a premium CVD coated carbide specifically optimized for grey cast iron turning. It utilizes a thick Al2O3 (Alumina) coating layer which acts as a thermal barrier, significantly reducing crater wear and flank wear during high-velocity production runs.
GK Chipbreaker: The GK geometry is a robust design for cast iron machining. It provides exceptional edge strength, ensuring that the tool resists the abrasive nature of cast iron chips while maintaining stable chip control and protecting the high surface finish of the component.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Gray Cast Iron (FC) | 200 - 550 m/min | 0.15 - 0.45 mm/rev | 1.0 - 4.0 mm |
| Ductile Cast Iron (FCD) | 150 - 350 m/min | 0.15 - 0.40 mm/rev | 1.0 - 3.5 mm |
Optimize Your Setup
Ensure maximum stability by pairing this VNMG 332 insert with high-quality tool holders.
Shop Compatible DVJNR/L Tool HoldersPro-Tip: Grade Comparison Guide
MC5015 is your first choice for high-speed finish-to-medium turning of cast iron. If you are machining ductile iron under interrupted conditions, consider switching to MC5005 for increased wear resistance. For steel turning, the UE6110 or UE6020 grades are recommended to prevent premature failure.
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.