Mitsubishi WNMG080404 NX2525 Cermet Turning Inserts for Steel Finishing (10pcs) - BEYOND

Mitsubishi WNMG080404 NX2525 Cermet Turning Inserts for Steel Finishing (10pcs)

$92.26 USD

Price shown is a starting point. Contact us for a precise quote based on your requirements.

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Description

MITSUBISHI WNMG080404 NX2525

Mirror Finishing Cermet Specialist | Precision Steel Turning | Made in Japan

Product Overview

The Mitsubishi WNMG080404 NX2525 is a high-performance double-sided 80° trigon insert designed for the ultimate surface finish in Steel turning. Unlike traditional carbide, the NX2525 Cermet grade (Ceramic + Metal) offers exceptional chemical stability and resistance to built-up edge. This makes it the ideal tool for precision machining where a mirror-like Ra finish and strict dimensional tolerances are required. Optimized for light finishing to semi-finishing, this indexable cermet insert excels in high-speed CNC machining of carbon, alloy, and mild steels.

ISO Designation Identification

W
Trigon 80°
N
Negative 0°
M
Tolerance
G
Hole/Chip
08
IC 12.7mm
04
Thick 4.76mm
04
Rad 0.4mm

Technical Specifications: Metric vs. Imperial

Technical Feature Metric (ISO) Imperial (ANSI)
Model Number WNMG 080404 WNMG 431
Inscribed Circle (IC) 12.7 mm 0.500 inch
Corner Radius 0.4 mm 0.016 inch

Advanced Grade: NX2525 (Cermet Excellence)

The NX2525 grade is a non-coated Cermet that provides an ideal combination of hardness and thermal stability. Because Cermet has a low affinity for steel, it drastically reduces "built-up edge" (welding of the workpiece material to the insert). This property allows the WNMG080404 to maintain sharp cutting edges for longer periods, resulting in superior long-tail keywords performance and high-gloss finishes that coated carbides simply cannot match.

Precision Finishing Geometry

With a 0.4mm corner radius, this insert is tailored for fine finishing passes. It reduces cutting forces and heat generation, which is critical for preventing workpiece distortion in thin-walled parts. Used widely in CNC turning for automotive and aerospace components where high surface Ra quality is a non-negotiable requirement.

Recommended Cutting Parameters

Optimized for Steel Finishing (P-Class):

  • Cutting Speed (Vc): 150 - 350 m/min (490 - 1150 SFM)
  • Feed Rate (f): 0.05 - 0.20 mm/rev (0.002 - 0.008 ipr)
  • Depth of Cut (ap): 0.2 - 1.5 mm

*Pro Tip: For the best surface finish, keep the feed rate low and maintain a high cutting speed to leverage the Cermet's properties.*

Compatible Tool Holders:

Shop MWLNR / DWLNR 08 Holders

Global Verified Customer Feedback

⭐⭐⭐⭐⭐ "Like a Mirror" - Alex T., Canada
"Switched from coated carbide to this NX2525 cermet for the final pass on alloy steel shafts. The finish is literally like a mirror. No polishing needed!"

⭐⭐⭐⭐⭐ "Great Stability" - Satoshi W., Japan
"Original Mitsubishi quality. The dimensional stability over a 500-piece run was impressive. Highly recommend for precision work."

⭐⭐⭐⭐ "No Built-up Edge" - Gunter H., Germany
"Excellent resistance to welding when cutting mild steel. The edges stay sharp much longer than expected."

⭐⭐⭐⭐⭐ "Best for Finishing" - Liam J., Australia
"If you are doing semi-finishing or finishing on a CNC, this is the insert. The 6 edges on WNMG make it very cost-effective too."

⭐⭐⭐⭐⭐ "Authentic Japanese Product" - Andrei S., Romania
"100% genuine. Performance is top-tier. Shipping was fast and packaging was perfect."

Technical Q&A

Q: What is Cermet (NX2525) and when should I use it?

A: Cermet is a hybrid material of Ceramic and Metal. Use it for high-speed finishing of steel when you need a high-quality surface Ra finish and high wear resistance.

Q: Is this insert suitable for interrupted cuts?

A: Cermet is more brittle than carbide. It is best used for continuous cutting. For heavy interruptions, we recommend CVD coated grades like UE6020.

Q: How many edges do I get?

A: The WNMG shape is a double-sided trigon, providing 6 usable cutting edges, making it highly economical for machine shops.

Expert Machining Tip: Cermet vs. Coated Carbide

Choose NX2525 Cermet for high surface speed and superior finish. Choose MC6025 Coated Carbide for versatility, toughness, and heavy metal removal rates.

Technical FAQ & Buying Guide

Are your carbide inserts interchangeable with major brands like Sandvik, Iscar, or Kennametal?

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.

How do I choose the correct insert grade and chipbreaker for machining Stainless Steel (M) vs. Carbon Steel (P)?

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.
What are the recommended cutting speed (Vc) and feed rate (f) parameters to maximize tool life?

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.
Do you offer bulk discounts or wholesale pricing for machine shops and distributors?

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.

What is your international shipping policy and typical lead time for orders?

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.

How do you guarantee the quality and tolerance precision of your CNC tools?

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.