Mitsubishi CNMG120404-MA VP15TF Miracle Coated Insert for Stainless & Steel
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CNMG120404-MA VP15TF
The Miracle Grade | PVD VP15TF Coating | Precision Finishing Specialist
The PVD Advantage for Difficult Materials
VP15TF Miracle Grade (PVD Coating): The VP15TF is Mitsubishi’s most versatile PVD-coated grade. Unlike thick CVD coatings, this "Miracle" PVD layer maintains an incredibly sharp edge while providing a high-lubricity surface. This is essential for preventing built-up edge (BUE) when machining gummy materials like 300-series Stainless Steel and Mild Steel.
MA Chipbreaker (Precision Medium-Finish): The MA geometry is designed to offer stable chip control at lower depths of cut. On this 0.4mm radius insert, it excels at shearing through the workpiece cleanly, reducing the heat transferred to the part and ensuring dimensional stability.
0.4mm (1/64") Precision Radius: The small corner radius is specifically chosen to reduce radial cutting forces. This prevents vibration and chatter on long, thin workpieces or low-rigidity machine setups, delivering a superior surface finish.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG120404-MA | 12.7 mm | 4.76 mm | 0.40 mm |
| Imperial | CNMG431-MA | 1/2" | 3/16" | 0.0157" (1/64") |
Precision Cutting Parameters
*The VP15TF grade is designed for medium-to-low speeds where edge sharpness is more important than pure heat resistance.
| 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 |
| Alloy Steel (4140/4340) | 120 - 220 m/min | 0.08 - 0.25 mm/r | 0.30 - 2.50 mm |
Compatible Tool Holders
For precision finishing, use DCLNR/L 12 or MCLNR/L 12 series holders:
Shop DCLNR 12 HoldersPro-Tip: When to choose VP15TF?
VP15TF (Sharpness King): Choose this for Stainless Steel and any operation where the part finish is failing due to chip welding or vibration.
VP15TF vs. UE6110: Use UE6110 for high-speed mass production of dry steel. Use VP15TF for everything else—especially wet machining of tough materials and precision finishing.
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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.