Mitsubishi WNMG06T308-MA US735 Carbide Turning Inserts for Stainless Steel - BEYOND

Mitsubishi WNMG06T308-MA US735 Carbide Turning Inserts for Stainless Steel

$43.30 USD

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Description

MITSUBISHI WNMG06T308-MA US735

Tough Stainless Steel Specialist | Advanced CVD Coated Carbide

Product Overview

The Mitsubishi WNMG06T308-MA US735 is a high-performance, double-sided 80° trigon negative insert specifically engineered for the medium-duty turning of stainless steel. Featuring the industry-leading US735 CVD coating, this insert provides exceptional resistance to thermal cracking and notch wear, which are common challenges when machining austenitic stainless steel. Equipped with the MA chipbreaker and a robust 0.8mm corner radius, it ensures stable chip control and extended tool life for both continuous and interrupted CNC lathe operations.

ISO Designation Identification

W
Trigon 80°
N
Negative 0°
M
Tolerance
G
Hole/Chip
06
IC 9.525mm
T3
Thick 3.97mm
08
Radius 0.8mm
MA
Medium Cut

Technical Specifications: Metric vs. Imperial

Technical Features Metric (ISO) Imperial (ANSI)
Model Number WNMG 06T308-MA WNMG 33.52-MA
Inscribed Circle (IC) 9.525 mm 0.375 inch
Corner Radius 0.8 mm 0.031 inch

Advanced Grade: US735 Stainless Specialist

The US735 grade is Mitsubishi’s authoritative solution for machining difficult-to-cut stainless steels. This grade combines a high-toughness carbide substrate with a specialized multi-layer CVD coating that provides excellent resistance against built-up edge (BUE) and plastic deformation. It is particularly effective for interrupted cutting and machining work-hardening alloys.

MA Chipbreaker Geometry

The MA (Medium-range) chipbreaker features a sharp but reinforced cutting edge. It is optimized to provide a wide chip control range, making it highly versatile for general medium-duty turning. By reducing cutting resistance and ensuring effective chip breaking, the MA geometry prevents heat concentration at the tool tip, protecting your indexable tool holder.

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 improved tool life and surface finish, the use of high-pressure coolant is highly recommended.*

Recommended Tooling Compatibility:

Shop MWLNR / DWLNR Holders

Global Verified Reviews

⭐⭐⭐⭐⭐ "Workhorse for 304 Stainless" - James W., USA
"The US735 grade is incredibly tough. I use these for turning 304 stainless shafts and the tool life is nearly double what I was getting with generic inserts. Highly recommended."

⭐⭐⭐⭐⭐ "Great Chip Breaking" - Lars E., Sweden
"MA chipbreaker works perfectly. No more bird-nesting chips wrapping around the spindle. These are genuine Mitsubishi quality."

⭐⭐⭐⭐ "Reliable Tooling" - Yuki H., Japan
"Consistent performance across the batch. 6 cutting edges make it very cost-effective for our production shop."

⭐⭐⭐⭐⭐ "Fast shipping to UK" - Thomas B., UK
"Exactly as described. Authentic US735 inserts. Perfect for our CNC lathe operations on stainless components."

⭐⭐⭐⭐⭐ "Top Notch" - Giovanni R., Italy
"The 0.8mm radius is very robust. Great for roughing out stainless steel parts with stability."

Technical Q&A

Q: Can I use WNMG06T308 for turning mild steel?

A: Yes, it can be used, but US735 is specifically optimized for stainless steel. For carbon steel, a grade like MC6025 would provide higher efficiency.

Q: How many cutting edges are available on this insert?

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

Q: Is this suitable for finishing operations?

A: With a 0.8mm radius and MA chipbreaker, it is best for medium roughing. For high-precision finishing, a 0.4mm radius (WNMG06T304) is generally preferred.

Expert Material Tip: US735 vs. MC7025

For General Stainless Steel turning, choose US735 for its superior toughness and resistance to interrupted cuts. If you are performing high-speed continuous turning on stable parts, MC7025 may offer better wear resistance on the cutting edge.

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.