Mitsubishi CNMG120408-MA VP15TF Miracle PVD Insert for Stainless & Steel
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CNMG120408-MA VP15TF
The Miracle Multi-Tasker | PVD VP15TF Grade | MA Versatile Geometry
Superior PVD Performance for Mixed Production
VP15TF Miracle Grade (The PVD Powerhouse): The VP15TF grade features a ultra-fine micro-grain carbide substrate coated with Mitsubishi's "Miracle" PVD layer (Al-Ti-N based). This coating provides an exceptional balance of wear resistance and toughness. Because it is a PVD process, the cutting edge remains significantly sharper than CVD-coated equivalents, making it the "gold standard" for Stainless Steel (M-class) and General Steel (P-class).
MA Chipbreaker (Medium-Duty Reliability): The MA chipbreaker is designed for a broad range of applications. It features a specialized rake angle that promotes smooth chip flow while maintaining edge integrity. Whether you are performing continuous turning or light interrupted cuts, the MA geometry ensures efficient metal removal and prevents chip nesting.
0.8mm (1/32") Universal Radius: The 0.8mm corner radius is the most widely used size in modern machining. It is robust enough for medium roughing passes while maintaining the precision required to produce excellent surface finishes (Ra) in the final pass.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG120408-MA | 12.7 mm | 4.76 mm | 0.80 mm |
| Imperial | CNMG432-MA | 1/2" | 3/16" | 0.0315" (1/32") |
Recommended Cutting Parameters
*VP15TF performs exceptionally well with coolant. Adjust speeds based on the hardness of your specific workpiece.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Stainless Steel (304/316) | 100 - 200 m/min | 0.10 - 0.35 mm/r | 0.50 - 4.00 mm |
| Alloy Steel (4140/4340) | 140 - 240 m/min | 0.12 - 0.40 mm/r | 0.80 - 4.50 mm |
Compatible Tool Holders
Maximum versatility with DCLNR/L 12 and MCLNR/L 12 clamping systems:
Shop DCLNR 12 HoldersPro-Tip: When to choose VP15TF?
VP15TF vs. US735: While both are for stainless steel, VP15TF is more universal. If you are experiencing vibration or chipping in stainless, VP15TF’s tougher substrate often solves the problem.
VP15TF vs. UE6110: If you are machining continuous, clean steel at very high speeds, stay with UE6110 (CVD). If you have a mix of steel and stainless parts in your queue, use VP15TF to reduce tool changes.
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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.