Mitsubishi VNMG160404-GK MC5015 Carbide Insert | VNMG 331
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Mitsubishi VNMG160404-GK MC5015
High-Speed CVD Grade for Gray & Ductile Cast Iron Turning
The Mitsubishi VNMG160404-GK MC5015 is a high-performance 35° rhombic negative-type carbide turning insert. Engineered specifically for the high-speed machining of cast iron, the MC5015 grade features an advanced CVD coating that offers extreme wear resistance. This VNMG 331-GK ANSI equivalent is the professional choice for CNC lathe finishing and medium cutting where dimensional stability and long tool life are mandatory.
Technical Nomenclature Explained
Understanding the precision behind the VNMG160404-GK identification code:
| Code | Detailed Specification |
|---|---|
| V | Shape: 35° Rhombic (Diamond) |
| N | Clearance Angle: 0° (Negative) |
| M | Tolerance Class: Medium Precision Ground |
| G | Feature: Double-Sided with Hole |
| 16 | Size: ~16mm Cutting Edge Length |
| 04 | Thickness: 4.76mm |
| 04 | Nose Radius: 0.4mm (Fine Finishing) |
| GK | Chipbreaker: Cast Iron Specific (High Edge Strength) |
Global Interchangeability: ISO vs. ANSI
This VNMG insert is standardized for global CNC machining centers:
- ISO (Metric): VNMG160404-GK
- ANSI (Imperial): VNMG 331-GK
MC5015 Grade & GK Breaker Details
MC5015 CVD Grade: The MC5015 is a specialized CVD coated carbide designed for the high-speed turning of cast iron. It features a thick Al2O3 (Alumina) coating that provides exceptional thermal protection and prevents flank wear even at elevated cutting temperatures typical of gray cast iron production.
GK Chipbreaker Geometry: The GK breaker is specifically optimized for K-class (Cast Iron) materials. It features a robust cutting edge that resists the abrasive nature of cast iron chips, ensuring stable chip control and preventing edge chipping during medium-range cutting operations.
Cutting Parameters (Recommended)
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Gray Cast Iron (FC) | 200 - 600 m/min | 0.10 - 0.35 mm/rev | 0.5 - 3.0 mm |
| Ductile Cast Iron (FCD) | 150 - 400 m/min | 0.10 - 0.30 mm/rev | 0.5 - 2.5 mm |
System Integration
For maximum rigidity and precision, use this VNMG insert with high-quality tool holders.
Shop Compatible DVJNR/L Tool HoldersPro-Tip: Grade Comparison
MC5015 is the ultimate choice for high-speed finishing of cast iron. If your application involves heavy interrupted cutting, consider MC5005 for even higher wear resistance. If you are machining steel instead of cast iron, we recommend the UE6110 or UE6020 grades for optimal performance.
Need Help With Mitsubishi Inserts?
Looking for a Mitsubishi equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
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.