Mitsubishi CNMG120416-MA UE6020 Carbide Insert for Heavy Steel Roughing
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CNMG120416-MA UE6020
Extreme Roughing Titan | UE6020 CVD Grade | 1.6mm Reinforced Radius
Engineered for Maximum Feed & Impact
UE6020 Grade (CVD Coating Mastery): The UE6020 is a specialized CVD-coated grade optimized for P-Class (Steel). It features a multi-layer structure of TiCN and Alumina (Al2O3) that provides a superior thermal barrier. This prevents the cutting edge from softening during the high-heat generation associated with deep depths of cut in carbon and alloy steels.
MA Chipbreaker (Heavy-Medium Versatility): The MA geometry is Mitsubishi's legendary general-purpose chipbreaker. On this 1.6mm radius platform, it is optimized to direct chips away from the workpiece at high volumes, preventing chip re-cutting and surface damage even when the feed rate is significantly increased.
1.6mm (1/16") Reinforced Radius: This is the strongest corner radius available for the 1204 series. It is purpose-built to survive heavy interruptions and high-vibration environments. The large radius also helps in dissipating heat across a wider area, drastically increasing tool life during continuous heavy roughing.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG120416-MA | 12.7 mm | 4.76 mm | 1.60 mm |
| Imperial | CNMG434-MA | 1/2" | 3/16" | 0.063" (1/16") |
Recommended Roughing Parameters
*Note: The 1.6mm radius creates higher radial pressure. Ensure your tool holder and machine have high rigidity.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Low Carbon Steel (A36/1020) | 150 - 350 m/min | 0.30 - 0.75 mm/r | 1.60 - 6.00 mm |
| Alloy Steel (4140/4340) | 120 - 280 m/min | 0.25 - 0.60 mm/r | 1.60 - 5.00 mm |
Compatible Tool Holders
Maximum performance with DCLNR/L 12 and MCLNR/L 12 double-clamp holders:
Shop DCLNR 12 HoldersPro-Tip: When to choose the 1.6mm Radius?
CNMG120416 (The Beast): Choose this when your priority is Edge Security and High Productivity. If you are breaking 1.2mm radius inserts or need a stronger edge for raw casting skins, this is your solution.
Surface Finish Note: Due to the large radius, this insert will produce a "wiper-like" effect on finishing passes, but requires higher feed rates to prevent "rubbing" and vibration.
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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.