Mitsubishi TPMH080204-MV US735 | Stainless Steel Turning Insert
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TPMH080204-MV US735
Mitsubishi Materials | The Stainless Steel Machining Specialist
Precision Finishing for Gummy & Tough Materials
The Mitsubishi TPMH080204-MV US735 is a high-toughness PVD coated carbide insert specifically engineered for Stainless Steel turning. The US735 grade is world-renowned for its ability to resist built-up edge (BUE) and chipping in interrupted cuts. Equipped with the MV chipbreaker, this long-tail precision insert provides superior chip control during internal boring and finishing of 300 and 400 series stainless steels.
US735 Tough PVD | MV Fine-Finish Geometry | ISO M25-M40 Range
Technical Code Identification
Triangular Shape
11° Positive Relief
M-Class Tolerance
Countersink Hole
8mm Edge Length
2.38mm Thick
0.4mm Radius
Chipbreaker
ISO (Metric) vs ANSI (Inch) Comparison
| Feature Spec | ISO (Metric) | ANSI (Inch Equivalent) |
|---|---|---|
| Model Number | TPMH080204-MV | TPMH 1.51.51 MV |
| Inscribed Circle (IC) | 4.76 mm | 0.1875" (3/16") |
| Thickness | 2.38 mm | 0.094" (3/32") |
The US735 PVD Advantage
US735 is a specialized PVD-coated grade for M-class (Stainless Steel) materials. It features a high-toughness carbide substrate that absorbs impact during interrupted cuts, while the coating provides a low-friction surface to prevent sticking and built-up edge—the primary cause of tool failure in stainless steel.
MV "Multi-Value" Chipbreaker
The MV chipbreaker is designed for light-to-medium finishing. Its geometry creates a sharp cutting action that reduces cutting resistance, which is vital for preventing the work-hardening of the surface in materials like 304 or 316 stainless. It ensures excellent surface finishes even at lower feed rates.
Recommended Cutting Parameters
| Workpiece Material | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Austenitic Stainless (304/316) | 80 - 160 m/min | 0.05 - 0.15 mm/rev | 0.2 - 1.5 mm |
| Martensitic Stainless (440C/410) | 100 - 180 m/min | 0.05 - 0.18 mm/rev | 0.2 - 1.5 mm |
COMPATIBLE HOLDERS
Perfect fit for standard STFPR/L 08 or STGPR/L 08 boring bars.
Shop 8mm 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.