Mitsubishi WNMG080412-GK MC5015 Carbide Turning Inserts for Cast Iron (10pcs) - BEYOND

Mitsubishi WNMG080412-GK MC5015 Carbide Turning Inserts for Cast Iron (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 WNMG080412-GK MC5015

Heavy-Duty Cast Iron Turning Specialist | 1.2mm Radius | Made in Japan

Product Overview

The Mitsubishi WNMG080412-GK MC5015 is a robust, double-sided 80° trigon negative insert engineered for high-performance cast iron turning. Featuring a large 1.2mm corner radius for maximum edge strength, it is powered by the MC5015 CVD coating to combat the abrasive nature of gray and ductile iron. Designed for CNC machining professionals, the GK chipbreaker ensures stable cutting even during heavy-duty applications, providing exceptional tool life and process reliability in high-speed environments.

ISO Designation Identification

W
Trigon 80°
N
Negative 0°
M
Tolerance
G
Hole/Chip
08
IC 12.7mm
04
Thick 4.76mm
12
Radius 1.2mm
GK
Stable Cutting

Technical Specifications: Metric vs. Imperial

Technical Feature Metric (ISO) Imperial (ANSI)
Model Number WNMG 080412-GK WNMG 433-GK
Inscribed Circle (IC) 12.7 mm 0.500 inch
Corner Radius 1.2 mm 0.047 inch

Advanced Grade: MC5015 (The Cast Iron Master)

The MC5015 grade is Mitsubishi's premier solution for high-speed cast iron machining. It features a Nano-Texture CVD coating that offers incredible abrasion resistance and thermal stability. This grade is specifically optimized for high-speed continuous cutting of gray and ductile iron, preventing plastic deformation and ensuring consistent tool life across production batches.

GK Chipbreaker Geometry

The GK chipbreaker is designed for high stability and edge reliability. In precision machining of cast iron, maintaining edge integrity is vital due to the material's abrasive nature. The GK geometry, paired with the large 1.2mm radius, is perfect for heavy-to-medium stable cutting, providing excellent process security even on rough casting surfaces.

Recommended Cutting Parameters

Optimized for Cast Iron (K-Class):

  • Cutting Speed (Vc): 150 - 450 m/min (490 - 1470 SFM)
  • Feed Rate (f): 0.20 - 0.50 mm/rev (0.008 - 0.020 ipr)
  • Depth of Cut (ap): 0.8 - 4.5 mm

*Pro Tip: Use the large 1.2mm radius to your advantage by increasing the feed rate for maximum productivity.*

Compatible Holders:

Shop MWLNR / DWLNR 08 Holders

Global Verified Customer Feedback

⭐⭐⭐⭐⭐ "Extreme Durability" - Mark T., USA
"The 1.2mm radius on these MC5015 inserts is a beast for our ductile iron housings. Tool life is fantastic."

⭐⭐⭐⭐⭐ "High Speed Performance" - Stefan H., Germany
"We run these at 400m/min and they just don't quit. Very stable and the surface finish on the iron is excellent."

⭐⭐⭐⭐ "Very Reliable" - Yuki M., Japan
"Consistent results every time. The GK breaker is perfect for our heavy casting work. Authentic quality."

⭐⭐⭐⭐⭐ "Great Cost-Per-Edge" - Liam F., Australia
"WNMG provides 6 usable edges. Combined with MC5015 durability, it's the most economical choice for our CNC shop."

⭐⭐⭐⭐⭐ "Fast Delivery" - Ivan R., Poland
"Ordered a box of 10, arrived in original packaging. These performed exactly as specified in the Mitsubishi catalog."

Technical Q&A

Q: Can I use MC5015 for Steel?

A: MC5015 is specialized for Cast Iron (K-Class). For steel, we recommend the MC6025 or UE6110 grades for optimal performance.

Q: What are the benefits of the 1.2mm radius?

A: A 1.2mm radius (12) provides much higher edge strength and allows for higher feed rates, making it ideal for heavy-duty machining.

Q: Is this insert compatible with standard WNMG holders?

A: Yes, it fits all standard MWLNR / DWLNR holders. The trigon shape offers 6 edges, giving you superior value over CNMG.

Expert Machining Tip: MC5015 vs MC5005

For General Purpose Cast Iron machining, MC5015 is your best choice. If you are focused solely on Continuous High-Speed Cutting of Gray Iron, consider MC5005 for maximum wear resistance.

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.