Mitsubishi DNMG150404-MA VP15TF Finishing Insert | Stainless & Alloy
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DNMG150404-MA VP15TF
Precision Finish Mastery | Mirage PVD Technology | MA Low-Resistance Geometry
The Ultimate Precision Solution
VP15TF Grade (Mirage PVD Coating): The VP15TF is Mitsubishi’s most successful PVD grade. The "Mirage" coating utilizes a nano-layered structure that balances hardness with extreme toughness. It is specifically designed to stop Built-Up Edge (BUE) in gummy materials like 304/316 Stainless Steel, Inconel, and Titanium, ensuring the edge stays sharp longer.
MA Chipbreaker (Precision Medium-Finish): The MA chipbreaker features a positive rake angle and a specialized chip pocket. For a finishing radius like the 0.4mm, this geometry is critical to reduce radial cutting forces, preventing vibration and chatter on slender workpieces or long-reach applications.
0.4mm Radius (Mirror Finishing): The "04" (1/64") radius is the choice for high-accuracy finishing. It allows for lower cutting depths while producing a superior Ra surface finish. It is the go-to radius when you need to hold tolerances within microns.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DNMG150404-MA | 12.70 mm | 4.76 mm | 0.40 mm |
| Imperial | DNMG431-MA | 1/2" | 3/16" | 0.0157" (1/64") |
Recommended Machining Parameters
*The 0.4mm radius requires careful feed rate control to prevent tool tip burnout. Use high-pressure coolant.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Stainless Steel (304/316) | 80 - 180 m/min | 0.05 - 0.20 mm/r | 0.30 - 2.00 mm |
| High-Temp Alloys (Inconel) | 30 - 60 m/min | 0.05 - 0.15 mm/r | 0.20 - 1.50 mm |
Compatible Tool Holders
Maximum finishing precision with 15-series DDJNR/L or DDUNR/L holders:
Shop DDJNR 15 HoldersPro-Tip: VP15TF vs. US735
VP15TF (The Precision Choice): This PVD grade is much more wear-resistant at the higher speeds needed for finishing. It is the best choice for CNC lathes running continuous finish passes.
US735 (The Toughness Choice): Only switch to US735 if you are performing heavy interrupted cuts in stainless or have extremely unstable machine setups. For 90% of precision work, VP15TF is superior.
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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.