Mitsubishi TNMG160404-MS US735 | Stainless Steel Turning Insert
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TNMG160404-MS US735
Mitsubishi Materials | The Tough-Grade Stainless Steel Specialist
The Mitsubishi TNMG160404-MS US735 is an industry-standard CVD coated carbide insert specifically developed for the most demanding stainless steel turning applications. The US735 grade is renowned for its extreme toughness and resistance to thermal shocking, making it the primary choice for interrupted cuts and gummy materials. Featuring the MS chipbreaker, this indexable turning insert provides superior chip control in medium-to-light machining depths.
M-Class Stainless Range | High Toughness | MS Light-Medium Geometry
Code Identification Breakdown
Triangular
0° Relief
Tolerance
Hole/Chip
16.5mm Edge
4.76mm Thick
0.4mm Radius
Chipbreaker
ISO (Metric) vs ANSI (Inch) Reference
| Tech Spec | ISO Model | ANSI Equivalent |
|---|---|---|
| Model ID | TNMG160404-MS | TNMG 331 MS |
| Edge Length | 16.5 mm | 0.650" |
| Corner Radius | 0.4 mm | 0.016" |
US735 Grade Technology
The US735 grade is Mitsubishi's specialized CVD turning insert material for M-class stainless steel. It features a high-toughness substrate combined with a coating that significantly reduces built-up edge (BUE). This makes it an elite long-tail industrial tool for high-mix, low-volume production where reliability is key.
MS Medium-Light Breaker
The MS chipbreaker is specifically optimized for medium-light cutting of gummy materials. Its sharp rake angle reduces cutting resistance, preventing the work-hardening of the stainless steel surface while maintaining efficient chip evacuation at lower feed rates.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed per Rev ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Austenitic Stainless (304/316) | 60 - 150 m/min | 0.08 - 0.20 mm/rev | 0.3 - 2.5 mm |
| High-Temp Alloys (Inconel) | 30 - 60 m/min | 0.08 - 0.15 mm/rev | 0.3 - 2.0 mm |
COMPATIBLE TOOL HOLDERS
Pairs perfectly with MTJNR/L or WTJNR/L external turning 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.