Mitsubishi DCMT070208-MV US735 Carbide Turning Insert for Stainless Steel
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DCMT070208-MV US735
High-Strength Finishing | US735 CVD Grade | MV Versatile Chipbreaker
Built for Rigidity and Reliability
US735 Grade (CVD Toughness): The US735 is a CVD coated carbide grade specifically designed to handle the high thermal and mechanical shock of Stainless Steel machining. Its unique substrate and coating combination prevents notch wear and thermal cracking, making it the most reliable grade for interrupted cuts and unstable setups.
MV Chipbreaker (Stable Medium-Finishing): The MV (Medium-V) geometry is designed for versatility. It creates lower cutting forces than roughing breakers while providing significantly better chip control than fine finishers. It excels at breaking "bird-nest" chips in gummy materials like 304 and 316 stainless.
0.8mm Radius (Impact Resistance): The "08" (1/32") radius provides a robust cutting edge. It is less prone to chipping than smaller radii and allows for higher feed rates, making it perfect for semi-finishing or finishing where the material has a rough surface skin.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCMT070208-MV | 6.35 mm | 2.38 mm | 0.80 mm |
| Imperial | DCMT21.52-MV | 1/4" | 3/32" | 0.0315" (1/32") |
Recommended Machining Parameters
*US735 is optimized for toughness. Use flood coolant to maximize tool life and improve surface finish.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Stainless (304/316) | 80 - 160 m/min | 0.10 - 0.25 mm/r | 0.40 - 2.00 mm |
| Heat Resistant Alloys | 30 - 80 m/min | 0.08 - 0.20 mm/r | 0.30 - 1.50 mm |
Compatible Tool Holders
Rigidity is key for 07-series SDJCR/L or SDUCR/L holders:
Shop SDJCR 07 HoldersPro-Tip: US735 vs. VP15TF
US735 (CVD Carbide): Use this when your priority is impact resistance. It is the best choice for large diameters, interrupted cuts, or when the machine lacks high rigidity.
VP15TF (PVD Carbide): Switch to VP15TF for finishing small parts at high speeds where a sharper edge is required to prevent "pushing" the workpiece.
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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.