Mitsubishi WNMG080408-MS US735 Carbide Turning Inserts for Stainless Steel (10pcs) - BEYOND

Mitsubishi WNMG080408-MS US735 Carbide Turning Inserts for Stainless Steel (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 WNMG080408-MS US735

Premium Stainless Steel Turning Specialist | 100% Made in Japan

Product Overview

The Mitsubishi WNMG080408-MS US735 is a high-efficiency, double-sided 80° trigon negative insert precision-engineered for stainless steel turning. Designed for professional CNC machining, the US735 CVD coating offers exceptional resistance to thermal cracking and adhesive wear—common challenges when machining gummy austenitic stainless steels. Featuring a versatile 0.8mm corner radius and the sharp MS chipbreaker, this indexable carbide insert ensures consistent tool life and an outstanding surface finish in medium-to-light duty precision turning.

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
MS
Finishing

Technical Specifications: Metric vs. Imperial

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

Advanced Grade: US735 (Stainless Steel Master)

The US735 grade is Mitsubishi's premier solution for the M-Class (Stainless Steel) material group. Stainless steel is prone to "Built-up Edge" (BUE) and work-hardening. US735 uses a specialized CVD (Chemical Vapor Deposition) coating that provides high thermal shock resistance and edge toughness, making it the most reliable choice for continuous and light-interrupted cuts in 304, 316, and duplex stainless steel.

MS Chipbreaker Performance

The MS (Medium-Sharp) chipbreaker is specifically engineered for finishing and medium-light cutting. In stainless steel applications, the sharp edge of the MS geometry is critical to minimize the cutting pressure and friction heat that leads to material deformation. This ensures stable chip control and prevents "bird-nesting" during automated CNC turning.

Recommended Cutting Parameters

Optimized for Stainless Steel (M-Class):

  • Cutting Speed (Vc): 80 - 180 m/min (260 - 590 SFM)
  • Feed Rate (f): 0.12 - 0.35 mm/rev (0.005 - 0.014 ipr)
  • Depth of Cut (ap): 0.5 - 3.0 mm

*Note: Use high-pressure coolant to maximize tool life and chip evacuation in gummy materials.*

Compatible External Tool Holders:

Shop MWLNR / DWLNR Holders

Global Verified Customer Reviews

⭐⭐⭐⭐⭐ "Reliable on 316 Stainless" - Mark D., USA
"The US735 grade is incredibly stable. I've had zero chipping issues since switching for my 316 stainless valve bodies."

⭐⭐⭐⭐⭐ "Excellent Quality" - Dieter K., Germany
"Original Mitsubishi product from Japan. Predictable wear patterns and very clean surface finishes on alloy parts."

⭐⭐⭐⭐ "Great Chip Evacuation" - Sato H., Japan
"The MS chipbreaker works perfectly. No more long chips wrapping around the spindle during finishing."

⭐⭐⭐⭐⭐ "Economic 6-Edges" - Liam F., Australia
"Trigon inserts are a game changer for the budget. 6 edges of premium US735 carbide for this price is a steal."

⭐⭐⭐⭐⭐ "Long Lasting" - Andrej P., Poland
"Very long tool life compared to cheaper brands. Perfect for high-volume CNC runs. Fast shipping too."

Technical Q&A

Q: Can I use US735 for Carbon Steel?

A: While it can cut steel, US735 is optimized for Stainless Steel. For better efficiency in carbon steel, MC6025 or UE6110 are recommended.

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

A: The WNMG shape provides 6 usable cutting edges (3 per side), offering much better economy than 4-edged diamond inserts.

Q: Does this grade handle interrupted cuts?

A: Yes, the US735 grade is designed with high toughness specifically to manage thermal shock and light interruptions in stainless materials.

Expert Choice Tip: US735 vs VP15TF

For General Stainless Steel production and higher reliability, choose US735. For Universal Job Shop work including steel and cast iron, VP15TF is a versatile alternative.

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.