Mitsubishi TNMG160408-MA US735 | Stainless Steel Turning Insert
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TNMG160408-MA US735
Mitsubishi Materials | The Tough Stainless Steel Specialist
The Mitsubishi TNMG160408-MA US735 is a high-toughness CVD coated carbide insert engineered for the complexities of stainless steel turning. Utilizing the legendary US735 grade, this insert excels in preventing thermal cracking and adhesive wear, making it the top choice for interrupted cuts. Combined with the versatile MA chipbreaker, it provides stable chip control and reduces built-up edge (BUE) during medium-range cutting operations.
Medium Cutting MA | Grade US735 | Austenitic Stainless Specialist
Code Identification Breakdown
Triangular
0° Relief
Tolerance
Double Sided
16.5mm Edge
4.76mm Thick
0.8mm Radius
Chipbreaker
Metric & ANSI Cross-Reference
| Technical Spec | ISO (Metric) | ANSI (Inch) Equivalent |
|---|---|---|
| Model ID | TNMG160408-MA | TNMG 332 MA |
| Cutting Edge | 16.5 mm | 0.650" |
| Nose Radius | 0.8 mm | 0.031" |
US735 Grade Technology
The US735 grade is a specialized CVD coated carbide designed for ISO M30-M40 applications. It is engineered with a high-strength substrate that resists impact, making this indexable turning insert perfect for machining austenitic stainless steels (304, 316) even in unstable turning conditions.
MA Medium Chipbreaker
The MA chipbreaker is designed for medium-duty cutting. Its unique geometry provides a sharp cutting action while maintaining edge strength, effectively preventing work hardening of the workpiece. This ensures smooth chip evacuation and high precision machining results.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed per Rev ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Austenitic Stainless (304) | 100 - 180 m/min | 0.15 - 0.40 mm/rev | 1.0 - 4.0 mm |
| Duplex Stainless (2205) | 70 - 130 m/min | 0.15 - 0.35 mm/rev | 0.8 - 3.5 mm |
MATCHING TOOL HOLDERS
Perfectly paired with MTJNR/L or WTJNR/L top-clamp tool holders (Size 16).
Browse Size 16 Holders →
Technical FAQ & Buying Guide
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.
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.
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.
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.
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.
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.