Mitsubishi TCMT16T308 US735 | PVD Carbide Insert for Stainless Steel
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TCMT16T308 US735
Mitsubishi Materials | The Specialist for Stainless Steel & Interrupted Cutting
The Mitsubishi TCMT16T308 US735 is a high-performance PVD coated carbide insert designed for the most demanding stainless steel turning applications. Utilizing the US735 grade, this insert provides unparalleled resistance to thermal cracking and edge chipping. As a premier long-tail precision tool, its 0.8mm nose radius ensures maximum edge strength, making it the industry standard for interrupted cuts in austenitic stainless steels and tough alloys.
PVD Coated Grade | 0.8mm Radius | ISO M Specialist
Specification Breakdown
Triangular Shape
7° Relief Angle
M-Class Tolerance
Countersink Hole
16.5mm Edge
3.97mm Thick
0.8mm Radius
Global Standard Comparison
| Attribute | ISO (Metric) | ANSI (Inch) |
|---|---|---|
| Model Reference | TCMT16T308 | TCMT 32.52 |
| Inscribed Circle (IC) | 9.525 mm | 0.375" |
| Thickness (S) | 3.97 mm | 0.156" |
| Nose Radius (RE) | 0.8 mm | 0.031" |
US735 Grade Performance
The US735 grade is Mitsubishi's premium PVD solution for stainless steel turning. It is designed with a specialized tough substrate that absorbs mechanical shock during interrupted cuts. The PVD coating acts as a thermal barrier, significantly reducing crater wear and built-up edges (BUE) in gummy materials like 304 or 316 stainless.
Heavy-Duty Geometry
Featuring a 0.8mm radius, this indexable turning insert offers extreme edge stability. The positive 7° relief angle reduces friction and heat generation, while the chipbreaker is optimized for medium-to-roughing passes, ensuring reliable chip evacuation in difficult-to-cut alloys.
Technical Cutting Data
| Material Group | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Stainless Steel (SUS304) | 80 - 150 m/min | 0.12 - 0.35 mm/rev | 0.5 - 2.5 mm |
| High-Temp Alloys | 30 - 60 m/min | 0.10 - 0.25 mm/rev | 0.5 - 2.0 mm |
PRECISION TOOLING MATCH
This insert is designed for standard STFCR/L boring bars and STGCR/L external turning tool holders (Size 16).
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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.