Mitsubishi WNMG080412-MM MC7025 Stainless Steel Turning Inserts (10pcs/box) - BEYOND

Mitsubishi WNMG080412-MM MC7025 Stainless Steel Turning Inserts (10pcs/box)

$92.26 USD

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Check compatibility: Confirm the model and dimensions before ordering.
Need help choosing? Contact us before ordering.

💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF

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Description

MITSUBISHI WNMG080412-MM MC7025

Professional Stainless Steel Specialist | 1.2mm Corner Radius | Made in Japan

Product Overview

The Mitsubishi WNMG080412-MM MC7025 is a high-performance double-sided 80° trigon negative insert precision-engineered for Stainless Steel turning. Featuring a robust 1.2mm corner radius for maximum edge strength and the specialized MC7025 CVD coating, this insert excels in medium cutting of austenitic and duplex stainless steels. The MM chipbreaker provides excellent chip control and prevents built-up edge (BUE), making this indexable carbide insert a premier choice for CNC machining where high productivity and exceptional tool life are required.

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
MM
Med-Stainless

Technical Specifications: Metric vs. Imperial

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

Advanced Grade: MC7025 (The Stainless Master)

The MC7025 grade represents the peak of CVD technology for Stainless Steel. It features a specialized coating layer that resists thermal cracking and notch wear, common issues when machining gummy materials. This grade is optimized for continuous cutting at high speeds, providing stable performance across 300-series and duplex stainless steels on your CNC lathe.

MM Chipbreaker Geometry

The MM (Medium) chipbreaker is designed for a broad range of medium-duty machining. Paired with the large 1.2mm radius (12), it offers extreme edge toughness. In CNC turning, this combination handles inconsistent depths of cut and moderate feed rates while ensuring chips are broken into manageable sizes, protecting your workpiece finish.

Recommended Cutting Parameters

Optimized for Stainless Steel (M-Class):

  • Cutting Speed (Vc): 120 - 220 m/min (390 - 720 SFM)
  • Feed Rate (f): 0.20 - 0.45 mm/rev (0.008 - 0.018 ipr)
  • Depth of Cut (ap): 0.8 - 3.5 mm

*Pro Tip: Thanks to the 1.2mm radius, you can push higher feed rates with superior edge security.*

Compatible Holders:

Shop MWLNR / DWLNR 08 Holders

Global Verified Customer Feedback

⭐⭐⭐⭐⭐ "Best for 316 Stainless" - James H., USA
"The 1.2mm radius on MC7025 is a lifesaver. We do heavy roughing on 316 stainless and the tool life is nearly double our previous brand."

⭐⭐⭐⭐⭐ "Predictable and Stable" - Lars V., Germany
"Consistent Japanese quality. The MM breaker manages chips well even at lower feed rates. Very satisfied."

⭐⭐⭐⭐ "Great for High Speed" - Yuki M., Japan
"Handles the heat of high-speed stainless turning very well. The edge doesn't chip like others."

⭐⭐⭐⭐⭐ "Economic 6-Edge Design" - Liam T., Australia
"WNMG is superior value. 6 edges with Mitsubishi's toughness is the best ROI for our shop production."

⭐⭐⭐⭐⭐ "Fast Shipping, Original" - Pavel S., Poland
"Authentic inserts. Arrived in original packaging. Performance matches the technical data sheets perfectly."

Technical Q&A

Q: Can I use MC7025 for Steel?

A: MC7025 is optimized for Stainless Steel (M-Class). For general steel, please use UE6110 or MC6025 for better cost-efficiency.

Q: Why choose the 1.2mm radius over 0.8mm?

A: The 1.2mm radius offers a stronger cutting edge, which is vital for heavy roughing and managing heat in stainless steel.

Q: Is this insert compatible with standard holders?

A: Yes, it fits any standard MWLNR / DWLNR 08 holder. WNMG offers 6 usable edges for maximum economy.

Expert Machining Tip: MC7025 vs US735

For Stable, High-Speed Stainless turning, MC7025 is the king. For Interrupted Cutting or unstable setups, consider the US735 PVD grade for higher toughness.

Technical FAQ & Buying Guide

How do I choose the correct specification?

When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.

How can I check compatibility with my existing setup?

For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.

What quantity and price unit am I ordering?

Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.

How should I choose cutting parameters?

Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.

Are bulk discounts available?

Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.

When will my order ship and arrive?

According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.