Mitsubishi CCMT120408 UE6020 Carbide Turning Insert 0.8mm Radius (10pcs)
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CCMT120408 UE6020
High-Productivity Steel Turning | CVD Coated Carbide | 0.8mm Radius
Engineering Analysis
UE6020 Grade (CVD Coated Carbide): Optimized for Steel Machining (ISO P20-P35). This grade features a thick multi-layer CVD coating (TiCN + Al2O3 + TiN). The Aluminum Oxide (Al2O3) layer acts as a superior thermal barrier, preventing heat from penetrating the carbide substrate, which drastically reduces crater wear during high-speed continuous turning.
0.8mm Radius (The Productivity Advantage): The large corner radius provides a more robust cutting edge, allowing for significantly higher feed rates (mm/rev). It also creates a stronger "wiping" effect, improving surface finish at higher feeds compared to smaller radii inserts.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CCMT120408 | 12.70 mm | 4.76 mm | 0.80 mm |
| Imperial | CCMT432 | 0.500" (1/2") | 0.187" (3/16") | 0.0315" (1/32") |
Recommended Cutting Parameters
*The 1204 size class offers superior rigidity for deep semi-roughing. Use coolant for best results.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon Steel (1045) | 150 - 350 m/min | 0.12 - 0.35 mm/r | 0.40 - 2.50 mm |
| Alloy Steel (4140) | 130 - 280 m/min | 0.10 - 0.30 mm/r | 0.40 - 2.00 mm |
Required Tool Holder
Maximum stability for SCLCR/L 12 external tools and large boring bars:
Shop SCLCR 12 HoldersPro-Tip: UE6020 vs NX2525
UE6020 (CVD Carbide): The best choice for Productivity & Reliability. Use this for general turning where material removal rates and tool life are the priority.
NX2525 (Cermet): Choose cermet only for High-Gloss Finishing. Cermet is more brittle and cannot handle the same heavy feed rates or depths of cut as UE6020.
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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.