Mitsubishi VNMG160408-MA UC5115 Carbide Insert | VNMG 332
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Mitsubishi VNMG160408-MA UC5115
High-Speed CVD Coated Carbide Specialized for Cast Iron Turning
The Mitsubishi VNMG160408-MA UC5115 is a high-performance 35° rhombic negative-type carbide turning insert. Engineered specifically for the high-efficiency machining of cast iron, the UC5115 grade provides exceptional wear resistance and heat stability. This VNMG 332-MA ANSI equivalent is the premier choice for CNC lathe operations involving grey and ductile cast iron where dimensional accuracy and high-speed throughput are critical.
Technical Nomenclature Breakdown
Understanding the precision behind the VNMG160408-MA 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 |
| 08 | Nose Radius: 0.8mm (Roughing to Medium Finishing) |
| MA | Chipbreaker: Medium Cutting (MA Type) |
Global Identification: Metric vs. Inch
This precision turning tool follows international ISO and ANSI standards:
- ISO (Metric): VNMG160408-MA
- ANSI (Imperial): VNMG 332-MA
Grade & Geometry Analysis
UC5115 Grade (CVD Coating): Optimized specifically for cast iron turning. It features a specialized Alumina (Al2O3) coating layer that provides extreme crater wear resistance and high-temperature hardness. This allows for significantly higher cutting speeds than traditional carbide grades.
MA Chipbreaker: The MA breaker is the versatile "all-rounder" for medium-range cutting. It provides stable chip control over varied feed rates, ensuring a high surface finish while preventing chip build-up on the tool holder.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Grey Cast Iron (FC) | 150 - 450 m/min | 0.15 - 0.40 mm/rev | 1.0 - 4.0 mm |
| Ductile Cast Iron (FCD) | 120 - 300 m/min | 0.15 - 0.35 mm/rev | 1.0 - 3.0 mm |
System Integration
For maximum performance and stability, pair this VNMG 332 insert with our premium holders.
Shop Compatible DVJNR/L Tool HoldersPro-Tip: Grade Selection Advice
UC5115 is your first choice for high-speed machining of cast iron. If you are machining steel, consider switching to UE6110 or UE6020. For stainless steel applications where toughness is required, US735 or VP15TF remain the superior options.
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.