Mitsubishi TPMH160304-MV US735 | Stainless Steel Carbide Insert
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TPMH160304-MV US735
Mitsubishi Materials | Heavy-Duty Stainless Steel Specialist
Heavy-Duty Precision for Stainless Boring
The Mitsubishi TPMH160304-MV US735 is a high-toughness PVD coated carbide insert designed for the most demanding stainless steel turning applications. The US735 grade is engineered with a specialized substrate that excels in the "M" material group, providing incredible resistance to Built-Up Edge (BUE) and thermal cracking. With its large 16mm edge length and the MV chipbreaker, it is the premier long-tail turning tool for finishing large internal diameters in 304, 316, and Duplex Stainless Steels.
US735 PVD Toughness | MV Finishing Geometry | Large Scale Precision
Technical Code Identification
Triangular Shape
11° Positive Relief
M-Class Tolerance
Countersink Hole
16.5mm Edge
3.18mm Thick
0.4mm Radius
Chipbreaker
ISO (Metric) vs ANSI (Inch) Comparison
| Feature Spec | ISO (Metric) | ANSI (Inch Equivalent) |
|---|---|---|
| Model Number | TPMH160304-MV | TPMH 321 MV |
| Inscribed Circle (IC) | 9.525 mm | 0.375" (3/8") |
| Thickness | 3.18 mm | 0.125" (1/8") |
US735 Grade Performance
The US735 grade utilizes an advanced PVD (Physical Vapor Deposition) coating over a high-toughness carbide substrate. This allows the insert to withstand the high mechanical stress and intermittent impacts common in large-diameter stainless steel machining. It is particularly effective at preventing notch wear and adhesion (welding) between the chip and the tool.
MV "Multi-Value" Chip Control
The MV chipbreaker is designed for finishing and light-medium turning. Its sharp cutting geometry reduces radial cutting forces, which is critical for maintaining concentricity in deep CNC boring. It forces tough stainless chips into small, compact curls, ensuring they flush out easily without damaging the surface finish.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Stainless Steel (304/316) | 80 - 150 m/min | 0.05 - 0.20 mm/rev | 0.2 - 2.5 mm |
| Precipitation Hardened (17-4PH) | 60 - 120 m/min | 0.05 - 0.15 mm/rev | 0.2 - 2.0 mm |
COMPATIBLE HOLDERS
Designed for high-rigidity STFPR/L 16 or STGPR/L 16 boring bars.
Shop 16mm Boring Bars →
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.