Mitsubishi CPMH080204-MV UE6020 Steel Turning Insert (10pcs)
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CPMH080204-MV UE6020
Steel Versatility Standard | UE6020 Impact Grade | MV Chipbreaker Control
Optimized for Versatile Steel Turning
UE6020 Grade (CVD Toughness): The UE6020 is a classic, high-reliability CVD grade designed for P-Class (Steel). It is particularly effective at lower to medium cutting speeds where edge stability is a concern. The multi-layer TiCN + Al2O3 + TiN coating provides excellent resistance to built-up edge and flank wear, making it a "forgiving" grade for older machines or less stable setups.
MV Chipbreaker (The Problem Solver): The MV geometry is a Medium-cut chipbreaker designed specifically for positive inserts. It excels in chip evacuation across a broad range of depths. In steel turning, it prevents the formation of long, continuous chips that can wrap around the workpiece or the chuck, ensuring a safer and cleaner production environment.
0.4mm (1/64") Precision Edge: The 04 radius is the standard for detail. It provides low cutting resistance, which is vital for preventing the "bending" of small-diameter workpieces while still offering enough strength to handle light roughing.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CPMH080204-MV | 7.94 mm | 2.38 mm | 0.40 mm |
| Imperial | CPMH2.521-MV | 5/16" | 3/32" | 0.0157" (1/64") |
Recommended Cutting Parameters
*UE6020 is designed for stability. Maintain consistent speeds for the best surface finish results.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Low Carbon Steel (1018) | 150 - 280 m/min | 0.08 - 0.25 mm/r | 0.30 - 2.00 mm |
| Alloy Steel (4140) | 120 - 220 m/min | 0.06 - 0.20 mm/r | 0.25 - 1.50 mm |
Compatible Tool Holders
Ensure high-precision clamping with SCLC series holders or boring bars:
Shop SCLC HoldersPro-Tip: UE6020 vs. NX2525
UE6020 (The Generalist): Use this for general steel turning, especially when the material is irregular or the cut is interrupted.
NX2525 (The Finisher): Switch to NX2525 Cermet if you need a high-gloss surface finish and are taking very light, high-speed finishing passes.
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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.