Mitsubishi WNMG080408-MK MC5015 Cast Iron Turning Carbide Inserts (10pcs/box) - BEYOND

Mitsubishi WNMG080408-MK MC5015 Cast Iron Turning Carbide Inserts (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-MK MC5015

Cast Iron Machining Specialist | MK Medium Chipbreaker | Made in Japan

Product Overview

The Mitsubishi WNMG080408-MK MC5015 is a high-performance double-sided 80° trigon negative insert precision-engineered for Cast Iron turning. Featuring the specialized MC5015 CVD coating, this insert offers extreme wear resistance against the abrasive nature of gray and ductile iron. The MK chipbreaker is designed for medium cutting, ensuring this indexable carbide insert provides exceptional surface finishes and extended tool life even in high-speed CNC machining environments. Ideal for heavy-duty industrial components where reliability is paramount.

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
MK
Cast Iron Med

Technical Specifications: Metric vs. Imperial

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

Advanced Grade: MC5015 (The Cast Iron Expert)

The MC5015 grade is a specialized CVD coated carbide designed primarily for K-Class materials (Cast Iron). Its thick, hard coating provides a thermal barrier that resists the high heat generated during high-speed machining. This grade significantly reduces flank wear, which is the most common failure mode when turning abrasive cast iron, leading to ultra-stable precision machining.

MK Chipbreaker Geometry

The MK chipbreaker is specifically tuned for Cast Iron medium cutting. It features a stable land and optimized rake angle to handle the short, brittle chips typical of iron. In the CNC turning process, this geometry minimizes cutting resistance while maximizing edge strength, preventing chipping during interrupted cuts.

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 - 4.0 mm

*Pro Tip: MC5015 excels at high speeds. Increasing Vc often leads to better surface finishes in Gray Cast Iron.*

Compatible Holders:

Shop MWLNR / DWLNR 08 Holders

Global Verified Customer Feedback

⭐⭐⭐⭐⭐ "Incredible Wear Resistance" - Mark T., USA
"We turn ductile iron pulleys all day. These MC5015 inserts last 30% longer than our previous supplier's grade. Remarkable stability."

⭐⭐⭐⭐⭐ "Smooth Cutting" - Jürgen H., Germany
"The MK chipbreaker handles cast iron beautifully. No edge chipping even with the hard crust on the castings."

⭐⭐⭐⭐ "Great Consistency" - Kenji S., Japan
"Consistent Japanese quality. Very predictable tool life, which helps us automate our CNC shifts with confidence."

⭐⭐⭐⭐⭐ "Economic and Tough" - Liam W., Australia
"6 usable edges on a trigon insert is a game changer for cost-per-part in iron turning. Highly recommend."

⭐⭐⭐⭐⭐ "Fast Shipping" - Piotr A., Poland
"Authentic Mitsubishi inserts. Performance is exactly as stated in the manual. Perfect for our hydraulic component production."

Technical Q&A

Q: Can I use MC5015 for Steel?

A: While it can cut steel, it is optimized for Cast Iron (K-Class). For steel, UE6110 or MC6025 will offer better performance and economy.

Q: What is the benefit of the MK chipbreaker?

A: It provides excellent edge security and stability for medium turning of cast iron, preventing premature edge breakdown in abrasive conditions.

Q: How many edges does this insert have?

A: WNMG is a double-sided trigon, giving you 6 usable cutting edges, providing 50% more value than standard 4-edge diamond inserts.

Expert Machining Tip: MC5015 vs. UC5115

For High-Speed, Continuous iron turning, MC5015 is superior. For Heavy Interrupted Cuts or older machines with less stability, consider the UC5115 grade for its extreme toughness.

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.