Mitsubishi VNMG160404 NX2525 Cermet Insert | VNMG 331
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Mitsubishi VNMG160404 NX2525
High-Precision Cermet Grade for Mirror-Finish Steel Turning
The Mitsubishi VNMG160404 NX2525 is a premium 35° rhombic negative cermet turning insert. Engineered specifically for the high-speed finishing of steel, the NX2525 grade provides an exceptional mirror-like surface finish. Unlike standard carbide, this cermet tool offers superior chemical stability, significantly reducing built-up edge (BUE) and ensuring long-term dimensional accuracy for your CNC lathe operations.
Detailed Model Nomenclature
Decoding the precision engineering behind the VNMG160404 model code:
| Code | Detailed Specification |
|---|---|
| V | Shape: 35° Rhombic (Diamond) |
| N | Clearance Angle: 0° (Negative Insert) |
| 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 (Super Fine Finishing) |
Global Interchangeability: ISO vs. ANSI
This precision finishing tool is recognized internationally under both ISO and ANSI standards:
- ISO (Metric): VNMG160404
- ANSI (Imperial): VNMG 331
NX2525 Grade & SH Geometry
NX2525 Cermet Grade: Mitsubishi’s NX2525 is a micro-grain cermet (Ceramic + Metal) that provides the perfect balance of toughness and flank wear resistance. It is the premier choice for dry machining of steel where high surface gloss is mandatory.
Stable Geometry: The 35° V-shape provides the necessary clearance for intricate profiles and precision turning. When used with a finishing chipbreaker, it ensures excellent chip control even at light depths of cut.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Carbon Steel (P10-P20) | 150 - 350 m/min | 0.05 - 0.20 mm/rev | 0.2 - 1.5 mm |
| Alloy Steel (Finishing) | 120 - 280 m/min | 0.05 - 0.15 mm/rev | 0.2 - 1.2 mm |
System Integration
Ensure maximum stability for mirror-finishing by pairing this VNMG 331 insert with our high-rigidity tool holders.
Shop Compatible DVJNR/L Tool HoldersPro-Tip: Grade Selection Advice
NX2525 Cermet is superior to carbide for high-gloss finishing because it maintains a sharp edge and resists chemical welding. However, if your application involves heavy interrupted cuts or roughing, we recommend switching to UE6110 or MC6025 carbide grades for better impact resistance.
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.