Mitsubishi WNMG080404-MS US735 Stainless Steel Turning Inserts (10pcs) - BEYOND

Mitsubishi WNMG080404-MS US735 Stainless Steel Turning Inserts (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-MS US735

Precision Stainless Steel Turning Expert | 100% Made in Japan

Product Overview

The Mitsubishi WNMG080404-MS US735 is a high-performance, double-sided 80° trigon negative insert specifically engineered for stainless steel turning. Optimized for CNC machining environments where reliability is paramount, the US735 CVD coating offers exceptional resistance to thermal cracking and adhesive wear. Combined with the sharp MS chipbreaker and a precise 0.4mm corner radius, this indexable carbide insert provides world-class chip control and a superior surface finish on austenitic and duplex stainless steels.

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
MS
Finishing

Technical Specifications: Metric vs. Imperial

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

Specialized Grade: US735 (Stainless Specialist)

The US735 grade is Mitsubishi's premium CVD solution for the M-Class material group. Stainless steel is notoriously difficult due to its gummy nature and tendency to work-harden. US735 features a tough substrate and a specialized coating that minimizes material adhesion (Built-up Edge) and withstands the high temperatures generated during stainless steel turning, significantly extending tool life.

MS Chipbreaker Geometry

The MS (Medium-Sharp) chipbreaker is designed for precision finishing and light-to-medium cutting. It features a sharp cutting edge that reduces cutting resistance and friction heat. This is essential for precision machining where maintaining tight tolerances and preventing surface damage on stainless steel parts is a priority.

Recommended Cutting Parameters

Optimized for Stainless Steel (M-Class):

  • Cutting Speed (Vc): 80 - 180 m/min (260 - 590 SFM)
  • Feed Rate (f): 0.10 - 0.30 mm/rev (0.004 - 0.012 ipr)
  • Depth of Cut (ap): 0.3 - 2.5 mm

*Pro Tip: Use abundant coolant to prevent heat buildup and ensure optimal chip evacuation.*

Compatible Holders:

Shop MWLNR / DWLNR Tool Holders

Global Verified Customer Reviews

⭐⭐⭐⭐⭐ "Perfect for 304 Stainless" - David R., USA
"I've tried many brands, but US735 is the most consistent for 304 runs. The MS breaker stops the chips from wrapping around the spindle."

⭐⭐⭐⭐⭐ "Authentic Quality" - Lars M., Germany
"Original Mitsubishi inserts from Japan. Great price and the tool life is exactly as expected for high-end carbide."

⭐⭐⭐⭐ "Great Finish" - Kenji T., Japan
"The 0.4 radius is very precise. Excellent for the final pass on small valve components."

⭐⭐⭐⭐⭐ "Cost-Effective" - Liam S., Australia
"With 6 usable edges, WNMG is such a smart choice. These inserts handled my stainless project with ease."

⭐⭐⭐⭐⭐ "Highly Reliable" - Pavel D., Poland
"Consistent performance batch after batch. Fast shipping and original packaging. Will order again."

Technical Q&A

Q: Can I use US735 for Carbon Steel?

A: While it can cut steel, US735 is optimized for Stainless Steel. For carbon or alloy steels, MC6025 or UE6110 will offer superior wear resistance.

Q: What is the benefit of the MS chipbreaker?

A: The MS (Medium-Sharp) geometry is designed to prevent "bird-nesting" of chips in stainless steel, which is critical for automated CNC turning.

Q: How many cutting edges are on this insert?

A: WNMG is a double-sided negative trigon insert, providing a total of 6 usable edges.

Expert Choice Tip: US735 vs MC7025

For General Stainless Steel production, US735 is a proven workhorse. If you require higher cutting speeds in stable conditions, consider the MC7025 grade for increased productivity.

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.