Mitsubishi WNMG060408-MA US735 Carbide Turning Inserts for Stainless Steel - BEYOND

Mitsubishi WNMG060408-MA US735 Carbide Turning Inserts for Stainless Steel

$82.59 USD

Price shown is a starting point. Contact us for a precise quote based on your requirements.

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Description

MITSUBISHI WNMG060408-MA US735

Professional Stainless Steel Specialist | High-Toughness CVD Coating

Product Overview

The Mitsubishi WNMG060408-MA US735 is a premium, double-sided 80° trigon negative insert designed for the high-efficiency machining of stainless steel. Utilizing the legendary US735 CVD coated grade, this insert provides exceptional resistance to thermal cracking and notch wear, which are common obstacles when turning austenitic stainless steels. Equipped with the MA chipbreaker, it is the industry standard for medium-duty CNC lathe operations, ensuring stable chip control and prolonged tool life in challenging conditions.

ISO Designation Identification

W
Trigon 80°
N
Negative 0°
M
Tolerance
G
Hole/Chip
06
IC 9.525mm
04
Thick 4.76mm
08
Radius 0.8mm
MA
Medium Cut

Technical Specifications: Metric vs. Imperial

Technical Features Metric (ISO) Imperial (ANSI)
Model Number WNMG 060408-MA WNMG 332-MA
Inscribed Circle (IC) 9.525 mm 0.375 inch
Corner Radius 0.8 mm 0.031 inch

Grade & Geometry: US735 Stainless Specialist

The US735 grade is a specialized carbide substrate paired with a tough CVD coating, specifically balanced for interrupted cuts and high-temperature environments. It prevents built-up edge (BUE) and excels in work-hardening materials. The MA chipbreaker is a versatile medium-cutting geometry that balances edge sharpness with strength, providing excellent chip breaking across a wide range of precision machining applications.

Recommended Cutting Parameters

Optimized for Stainless Steel (M-Class):

  • Cutting Speed (Vc): 80 - 180 m/min (260 - 590 SFM)
  • Feed Rate (f): 0.15 - 0.40 mm/rev (0.006 - 0.016 ipr)
  • Depth of Cut (ap): 0.8 - 3.5 mm

*Pro Tip: For best results, use a generous supply of coolant to manage heat dissipation.*

Essential Tooling Compatibility:

Shop MWLNR / DWLNR Turning Tool Holders

Customer Reviews & Feedback

⭐⭐⭐⭐⭐ "Reliable for 316 Stainless" - James P., USA
"The US735 grade is my go-to for 316 stainless. It handles the toughness without chipping, and the 0.8mm radius gives a great balance between tool life and finish."

⭐⭐⭐⭐⭐ "Authentic Quality" - Stefan M., Germany
"Original Mitsubishi packaging. These inserts are very consistent. Excellent performance for medium turning operations."

⭐⭐⭐⭐ "Great Chip Control" - Tanaka H., Japan
"The MA chipbreaker works perfectly in a variety of stainless grades. No bird-nesting of chips on my CNC lathe."

⭐⭐⭐⭐⭐ "Superb Value" - Liam R., Australia
"6 usable edges per insert makes these very cost-effective. Shipping was fast and the product is top-notch."

⭐⭐⭐⭐⭐ "Tough Tooling" - Ricardo S., Brazil
"Even in interrupted cuts on stainless shafts, the US735 holds its edge. Very satisfied with the durability."

Technical Q&A

Q: Is WNMG060408 suitable for roughing or finishing?

A: With the MA chipbreaker and a 0.8mm radius, it is best suited for medium-duty cutting. It can handle light roughing but is designed for general purpose efficiency.

Q: How many cutting edges are available?

A: This is a double-sided negative trigon insert, giving you 6 usable edges total (3 per side).

Q: Does US735 require coolant?

A: While it can run dry, high-pressure coolant is highly recommended for stainless steel to prevent heat build-up and improve chip evacuation.

Expert Tip: Material Comparison

For Stainless Steel, use US735 for its toughness. If you are predominantly machining Cast Iron, we recommend switching to UC5115 for better abrasive resistance. Always match the grade to the material class for maximum tool life.

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.