Mitsubishi DNMG150408-MA US735 Insert | Interrupted Stainless Steel Cut
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DNMG150408-MA US735
Impact Specialist | High-Toughness US735 | MA Stable Chipbreaking
Conquer Interrupted Cuts and Scale
US735 Grade (The Tough PVD Choice): The US735 grade is legendary for its ability to survive mechanical shock. It features a specialized PVD coating over a unique, high-toughness carbide substrate. This combination is specifically engineered to handle Interrupted Cuts (turning hex, holes, or splines) and Heavy Scale on Stainless Steel where other grades would fracture.
MA Chipbreaker (Medium-Cut Reliability): The MA geometry provides a balanced rake angle. It is designed to be sharp enough to prevent "work-hardening" of stainless steel, yet robust enough to protect the edge from the heavy pressure of a 0.8mm radius. It curtails long, "bird-nest" chips, ensuring operator safety and part quality.
0.8mm Radius (Production Strength): The "08" (1/32") radius is the industry standard for semi-roughing and general production. It offers maximum edge security, allowing for higher feed rates and deep depths of cut without sacrificing the integrity of the tool tip.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DNMG150408-MA | 12.70 mm | 4.76 mm | 0.80 mm |
| Imperial | DNMG432-MA | 1/2" | 3/16" | 0.0315" (1/32") |
Recommended Cutting Parameters
*US735 is optimized for toughness. Avoid excessive speeds to prevent thermal deformation.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| 304/316 Stainless Steel | 60 - 130 m/min | 0.12 - 0.35 mm/r | 0.80 - 3.50 mm |
| High-Temp Alloys (Inconel) | 25 - 55 m/min | 0.10 - 0.25 mm/r | 0.50 - 2.50 mm |
Compatible Tool Holders
Maximum rigidity for the 15-series 55° diamond pocket:
Shop DDJNR 15 HoldersPro-Tip: US735 vs. VP15TF
US735 (The Heavy-Hitter): Essential for manual lathes or CNC machines doing roughing passes on castings, hex bars, or parts with keyways. It avoids "catastrophic failure."
VP15TF (The Precision Speedster): Switch to VP15TF for continuous finishing passes in high-speed CNC environments. It is harder and holds a sharper edge longer, but it is less forgiving of impact.
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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.