The Mitsubishi WNMG06T304-MA US735 is a high-performance, double-sided 80° trigon negative insert specifically engineered for turning stainless steel. Featuring the industry-proven US735 CVD coating, this insert provides exceptional resistance to thermal cracking and notch wear. The MA chipbreaker ensures smooth chip evacuation during medium-duty CNC machining, making it a reliable choice for both continuous and interrupted cuts in austenitic and duplex stainless steels.
ISO Designation Identification
W Trigon 80°
N Negative 0°
M Tolerance
G Hole/Chip
06 IC 9.525mm
T3 Thick 3.97mm
04 Radius 0.4mm
MA Medium Cut
Technical Specifications: Metric vs. Imperial
Features
Metric (ISO)
Imperial (ANSI)
Model Number
WNMG 06T304-MA
WNMG 33.51-MA
Inscribed Circle (IC)
9.525 mm
0.375 inch
Thickness
3.97 mm
0.156 inch
Material Excellence: US735 CVD Coating
The US735 grade is a specialized CVD coated carbide that balances toughness and wear resistance. It is optimized for interrupted cutting of stainless steel, where vibration and thermal shock are prevalent. The coating effectively resists built-up edge (BUE), which is critical for maintaining surface integrity on precision parts.
MA Chipbreaker Performance
The MA (Medium-range) chipbreaker features a balanced cutting edge that provides excellent chip control across a variety of feed rates. This geometry prevents long, stringy chips from wrapping around the indexable tool, reducing downtime and protecting the workpiece finish during CNC turning operations.
⭐⭐⭐⭐⭐ "Reliable for 304/316" - David K., Canada "The US735 grade handles 316 stainless with ease. No chipping even with light interruptions. These are original and work perfectly."
⭐⭐⭐⭐⭐ "Great Chip Control" - Hans B., Germany "The MA chipbreaker is very versatile. We use it for medium-duty turning on our CNC lathes and the chip evacuation is excellent."
⭐⭐⭐⭐ "Consistent Tool Life" - Yuki M., Japan "Authentic Mitsubishi inserts. Tool life is very predictable, which is essential for our production runs. Good value for money."
⭐⭐⭐⭐⭐ "Fast Shipping" - Liam J., Australia "Received these quickly. They perform much better than the generic alternatives on stainless steel. Definitely buying again."
⭐⭐⭐⭐⭐ "Excellent Finish" - Marco S., Italy "The 0.4mm radius provides a very clean surface finish on stainless shafts. Very satisfied with the toughness of the US735 coating."
Technical Q&A
Q: Can I use WNMG06T304 on carbon steel?
A: Yes, it can be used, but US735 is optimized for the toughness of stainless steel. For general steel, a grade like MC6025 would be more efficient.
Q: What is the benefit of the trigon shape?
A: The 80° trigon shape provides the strength of a square insert with the versatility of a rounder shape, offering 6 cutting edges total.
Q: Is this insert suitable for high speeds?
A: US735 is a toughened grade. While it handles moderate speeds well, it is primarily designed for stability and toughness in difficult stainless steel cuts.
Material Choice Tip: US735 vs. MS6015
For Medium Stainless Turning, choose US735 for its superior toughness. If you are doing light finishing on small parts with high precision requirements, consider MS6015 for better sharpness and heat resistance on the cutting edge.
Mitsubishi WNMG06T304-MA US735 Carbide Turning Inserts for Stainless Steel
$67.98
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