Mitsubishi VNMG160404-SH NX2525 Cermet Insert | VNMG 331
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Mitsubishi VNMG160404-SH NX2525
High-Precision Cermet Grade for Superior Steel Finishing
The Mitsubishi VNMG160404-SH NX2525 is a premium 35° rhombic negative-type cermet turning insert. Unlike standard carbide, the NX2525 cermet grade is designed for high-speed finishing of steel, providing a mirror-like surface finish and exceptional dimensional accuracy. This VNMG 331-SH ANSI equivalent is the professional choice for CNC lathe finishing where thermal resistance and anti-welding properties are critical.
Technical Nomenclature Breakdown
Decoding the precision engineering behind the VNMG160404-SH 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 |
| 04 | Nose Radius: 0.4mm (Super Fine Finishing) |
| SH | Chipbreaker: Finishing for Soft Steel / Low Depth of Cut |
Global Identification: Metric vs. Inch
This precision finishing tool is standardized for global machining centers:
- ISO (Metric): VNMG160404-SH
- ANSI (Imperial): VNMG 331-SH
NX2525 Grade & SH Chipbreaker Analysis
NX2525 Cermet Grade: Cermet (Ceramic + Metal) offers a high chemical affinity for steel, which prevents "built-up edge" (BUE). The NX2525 micro-grain cermet provides the perfect balance between toughness and wear resistance, allowing for dry machining and achieving exceptional high surface finish results that carbide cannot match.
SH Chipbreaker: The SH geometry is specifically designed for finishing applications. Its sharp cutting edge and narrow groove ensure excellent chip control even at very small depths of cut, preventing the "long stringy chips" common when machining carbon steel.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Carbon Steel (Finishing) | 150 - 300 m/min | 0.05 - 0.20 mm/rev | 0.2 - 1.5 mm |
| Alloy Steel (Finishing) | 120 - 250 m/min | 0.05 - 0.15 mm/rev | 0.2 - 1.2 mm |
System Integration
Ensure maximum stability for finishing by pairing this VNMG insert with high-rigidity holders.
Shop Compatible DVJNR/L Tool HoldersPro-Tip: Cermet vs. Carbide
NX2525 Cermet is superior to carbide for light finishing because it maintains a sharp edge longer and resists chemical wear. However, for heavy roughing or interrupted cuts, cermet can be brittle; in those cases, we recommend switching to UE6110 or MC6025 carbide grades.
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.