Mitsubishi WNMG080408-MA UE6120 Carbide Turning Inserts for Steel (10pcs/box)

$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 WNMG080408-MA UE6120

The Toughness Specialist for Interrupted Steel Cutting | 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, making it the premier choice for machining carbon and alloy steels where cutting is not continuous. Combined with the versatile MA chipbreaker and a robust 0.8mm radius, this indexable carbide insert ensures reliability in the most 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
08
Radius 0.8mm
MA
Medium Cut

Technical Specifications: Metric vs. Imperial

Feature Metric (ISO) Imperial (ANSI)
Model Number WNMG 080408-MA WNMG 432-MA
Inscribed Circle (IC) 12.7 mm 0.500 inch
Corner Radius 0.8 mm 0.031 inch

Advanced Grade: UE6120 (Toughness Benchmark)

The UE6120 grade is Mitsubishi's specialized CVD coated carbide designed for interrupted steel turning. It features a high-toughness substrate paired with a multi-layer coating that resists impact shock and thermal cracking. This grade is the industry standard for machining alloy steels and carbon steels in unstable conditions or when processing parts with keyways and holes, ensuring a long and predictable tool life.

MA Chipbreaker Performance

The MA (Medium-range) chipbreaker is an all-rounder. It balances sharp cutting action with a reinforced land for edge stability. It provides excellent chip control across a wide variety of feed rates, preventing chip wrapping and protecting your CNC lathe tool holder from damage.

Recommended Cutting Parameters

Optimized for Steel / Alloy Steel (P-Class):

  • Cutting Speed (Vc): 120 - 240 m/min (390 - 790 SFM)
  • Feed Rate (f): 0.15 - 0.45 mm/rev (0.006 - 0.018 ipr)
  • Depth of Cut (ap): 0.8 - 4.5 mm

*Note: For heavy interrupted cuts, reduce cutting speed by 15-20% for maximum stability.*

Compatible Tooling:

Shop MWLNR / DWLNR Holders

Customer Reviews & Feedback

⭐⭐⭐⭐⭐ "Standard for Steel" - Mark T., USA
"UE6120 is the only grade that doesn't chip on my keyed shafts. Consistent tool life and clean cuts."

⭐⭐⭐⭐⭐ "Genuine Japanese Quality" - Hans K., Germany
"Exactly as described. Authentic Mitsubishi tools. The tool life is double that of the budget brands we tried."

⭐⭐⭐⭐ "Great Stability" - Kenji S., Japan
"Stable cutting even at high speeds. Very satisfied with the chip control on our CNC lathe."

⭐⭐⭐⭐⭐ "Fast Shipping" - Liam J., Australia
"Arrived quickly in original packaging. 6 usable edges per insert makes it highly cost-effective."

⭐⭐⭐⭐⭐ "Highly Recommended" - Andrej B., Poland
"The best for medium roughing in alloy steel. Zero issues with cratering or edge wear."

Technical Q&A

Q: Can I use this for stainless steel?

A: UE6120 is optimized for general steel. For stainless steel, we recommend grades like US735 or MP735 for better performance.

Q: What is the benefit of the Trigon (W-shape) insert?

A: The 80° trigon provides 6 usable edges, making it more economical than 4-edged CNMG inserts while maintaining high strength.

Q: Is this suitable for high-speed continuous cutting?

A: While UE6120 can handle it, the UE6110 grade is better optimized for purely continuous high-speed turning.

Expert Machining Tip: UE6110 vs. UE6120

For Stable Continuous Turning, choose UE6110 for maximum wear resistance. For General/Interrupted Turning, stick with UE6120 for superior toughness and shock protection.

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.