Mitsubishi CNMG120404-MS VP15TF Precision Finishing Insert (10pcs)
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CNMG120404-MS VP15TF
The Miracle Finisher | PVD VP15TF Grade | MS High-Sharpness Geometry
Precision Engineering for Difficult Materials
VP15TF Miracle Grade (The PVD Standard): The VP15TF grade is Mitsubishi’s proprietary PVD-coated carbide, featuring a specialized Al-Ti-N Miracle coating. Unlike thick CVD coatings that round off the cutting edge, this PVD layer allows the insert to remain razor-sharp. This is essential for preventing the "tearing" of material in stainless steel and heat-resistant alloys, ensuring the highest surface integrity.
MS Chipbreaker (Finishing Precision): The MS geometry is specifically designed for low depths of cut. It features a sharp rake angle that shears material with minimal pressure. This prevents work hardening—a common failure in 304/316 stainless—and ensures that chips are broken cleanly even at very fine feed rates.
0.4mm (1/64") Radius: The small corner radius minimizes radial cutting forces. This makes it the ideal tool for machining small diameters or thin-walled components where vibration and part deflection are major concerns.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG120404-MS | 12.7 mm | 4.76 mm | 0.40 mm |
| Imperial | CNMG431-MS | 1/2" | 3/16" | 0.0157" (1/64") |
Precision Finishing Parameters
*The VP15TF grade is designed for medium-to-low speeds to prevent thermal deformation of the sharp edge.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Stainless Steel (304/316) | 80 - 180 m/min | 0.05 - 0.18 mm/r | 0.20 - 1.50 mm |
| High-Temp Alloys (Inconel) | 30 - 65 m/min | 0.05 - 0.15 mm/r | 0.15 - 1.00 mm |
Compatible Tool Holders
Ensure high precision with DCLNR/L 12 or MCLNR/L 12 series holders:
Shop DCLNR 12 HoldersPro-Tip: Choosing the Right Grade
VP15TF vs. US735: Use VP15TF for precision finishing where setup is stable and surface finish is the priority. Switch to US735 if you encounter heavy interruptions or unstable vibrations.
MS vs. MA Geometry: Choose MS when your depth of cut is less than 1.5mm. For larger removal rates, the MA geometry provides a stronger edge.
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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.