Mitsubishi CNMG120404-MJ VP05RT PVD Insert for Super Alloys (10pcs)
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CNMG120404-MJ VP05RT
Super Alloy Specialist | VP05RT High-Hardness PVD | MJ Stability Geometry
Engineered for High-Speed Excellence in Tough Materials
VP05RT Grade (High-Wear Miracle PVD): The VP05RT grade is the high-hardness evolution of Mitsubishi’s "Miracle" series. It utilizes a specialized substrate paired with a dense PVD coating to provide maximum wear resistance. It is specifically designed for S-Class (Super Alloys) and hardened materials where tool life is usually cut short by extreme heat and abrasive wear.
MJ Chipbreaker (The Stable Performer): The MJ geometry is a semi-finishing to medium-duty breaker. It features a robust edge design that prevents chipping when encountering the unpredictable micro-structures of Titanium and Nickel-based alloys. It ensures excellent chip control even at the high surface speeds required to prevent work-hardening.
0.4mm (1/64") Precision Radius: The 04 radius is the "accuracy king." By reducing the contact area between the tool and the workpiece, it significantly lowers radial cutting forces. This is vital for preventing chatter and maintaining tight tolerances on thin-walled or high-precision components.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG120404-MJ | 12.7 mm | 4.76 mm | 0.40 mm |
| Imperial | CNMG431-MJ | 1/2" | 3/16" | 0.0157" (1/64") |
Recommended Cutting Parameters
*VP05RT is optimized for high-speed finishing. Use high-pressure coolant to maximize crater wear resistance.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Nickel Alloys (Inconel 718) | 40 - 80 m/min | 0.08 - 0.20 mm/r | 0.30 - 2.00 mm |
| Hardened Steel (40-50 HRC) | 80 - 150 m/min | 0.05 - 0.15 mm/r | 0.20 - 1.50 mm |
Compatible Tool Holders
Ensure absolute stability with DCLNR/L 12 series holders:
Shop DCLNR 12 HoldersPro-Tip: VP05RT vs. VP10RT
VP05RT (The Speed Star): Choose this grade when high surface speed is possible and wear resistance is the priority. It excels in long continuous finishing cuts.
VP10RT (The Versatile Toughness): Switch to VP10RT if you encounter vibrations or minor interrupted cuts, as it offers a higher degree of fracture toughness.
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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.