Mitsubishi WNMG080404-MA UE6120 Carbide Turning Inserts for Steel (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-MA UE6120

Toughness Specialist for Interrupted Steel Cutting | 100% Made in Japan

Product Overview

The Mitsubishi WNMG080408-MA UE6120 is a high-toughness, double-sided 80° trigon negative insert optimized for interrupted steel turning and unstable machining conditions. Engineered in Japan, the UE6120 CVD coating provides industry-leading impact resistance, preventing edge chipping even when machining keyed shafts or hex bars. Featuring the MA chipbreaker and a precise 0.4mm radius, this indexable carbide insert is the professional choice for reliability in demanding CNC machining environments.

ISO Designation Identification

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

Technical Specifications: Metric vs. Imperial

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

Interruption Grade: UE6120 (Tough CVD)

The UE6120 grade is Mitsubishi's premier solution for heavy interrupted steel turning. Unlike high-speed continuous grades, UE6120 focuses on substrate toughness and coating adhesion. It is optimized for the P25-P35 range, providing superior shock resistance during non-continuous cuts in carbon and alloy steels. This prevents sudden fracture and ensures predictable tool life in messy or unstable setups.

MA Chipbreaker Geometry

The MA chipbreaker is an all-purpose medium-range geometry. It provides a sharp cutting action for low resistance while maintaining a land that reinforces the edge against impact. It excels at chip control even when the cut depth varies, ensuring chips don't wrap around the CNC turning tool holder.

Recommended Cutting Parameters

Optimized for Steel (P-Class) Interrupted Cuts:

  • Cutting Speed (Vc): 120 - 240 m/min (395 - 785 SFM)
  • Feed Rate (f): 0.12 - 0.35 mm/rev (0.005 - 0.014 ipr)
  • Depth of Cut (ap): 0.5 - 3.5 mm

*Note: UE6120 is designed for stability. If doing light finishing on stable parts, consider higher speeds.*

Compatible External Tool Holders:

Shop MWLNR / DWLNR Tool Holders

Global Verified Customer Reviews

⭐⭐⭐⭐⭐ "Solved my Chipping Issues" - David K., USA
"Was struggling with broken inserts on keyed shafts. UE6120 fixed it instantly. Toughness is unmatched for interrupted cuts."

⭐⭐⭐⭐⭐ "Genuine Japanese Quality" - Hans G., Germany
"Exactly what I expect from Mitsubishi. The MA chipbreaker handles the gummy steel chips beautifully. Very stable."

⭐⭐⭐⭐ "Great for Versatile Work" - Sato M., Japan
"Reliable performance for everyday general purpose steel turning. Hard to find a better 6-edge trigon."

⭐⭐⭐⭐⭐ "Incredible Cost per Edge" - Liam F., Australia
"WNMG shape is my favorite for economy. 6 usable edges and this UE6120 grade lasts forever on 4140 steel."

⭐⭐⭐⭐⭐ "Fast Delivery & Original" - Andrej P., Poland
"Verified original boxes. These inserts shine when the setup isn't 100% rigid. Great impact resistance."

Technical Q&A

Q: When should I choose UE6120 over UE6110?

A: Choose UE6120 for interrupted cuts or unstable setups. Choose UE6110 for high-speed, continuous, stable production runs.

Q: Is this insert double-sided?

A: Yes, this is a negative trigon (W-shape) insert, providing 6 usable cutting edges for maximum cost efficiency.

Q: Does it work for stainless steel?

A: UE6120 is for General Steel. For stainless steel, we recommend MP735 or US735 for better chemical resistance.

Expert Performance Tip: CVD Toughness vs. Speed

For General Purpose & Interrupted Turning, use UE6120 to prevent chipping. If your machine is stable and the cut is continuous, use UE6110 to push the cutting speed further.

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.