Mitsubishi DCMT11T308 UE6020 Carbide Turning Insert for Steel (10pcs)
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DCMT11T308 UE6020
High-Strength Steel Specialist | UE6020 CVD Grade | 0.8mm Radius
Optimized for High-Feed Steel Machining
UE6020 Grade (Advanced CVD Coating): The UE6020 is Mitsubishi’s premier choice for general steel turning (P10-P30). It utilizes a thick TiCN + Al2O3 + TiN coating layers that offer a superior thermal barrier. This grade is engineered to resist crater wear and plastic deformation, ensuring long tool life during high-speed continuous machining of carbon and alloy steels.
DCMT Geometry (Positive Chipbreaker): The 55-degree diamond shape with a 7-degree positive relief angle reduces cutting resistance. This "free-cutting" geometry is critical for reducing heat generation and preventing work-hardening, even during deeper cuts.
0.8mm Radius (The Robust Choice): The "08" nose radius is designed for durability. It allows for higher feed rates than the 0.4mm version and provides a stronger edge that can withstand slight scale or surface irregularities in semi-roughing applications.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCMT11T308 | 9.525 mm | 3.97 mm | 0.80 mm |
| Imperial | DCMT32.52 | 3/8" | 5/32" | 0.0315" (1/32") |
Recommended Machining Parameters
*The 0.8mm radius allows for increased feed rates. Ensure workpiece stability for maximum results.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon Steel (1045/S45C) | 180 - 320 m/min | 0.15 - 0.35 mm/r | 0.50 - 2.50 mm |
| Alloy Steel (4140/SCM440) | 150 - 280 m/min | 0.12 - 0.30 mm/r | 0.50 - 2.00 mm |
Compatible Tool Holders
Maximum rigidity for semi-roughing with 11-series SDJCR/L or SDUCR/L holders:
Shop SDJCR 11 HoldersPro-Tip: UE6020 vs. US735
UE6020 (Steel Specialist): Your first choice for carbon steel production. It offers the highest wear resistance for continuous long-path turning.
US735 (Stainless Specialist): If your job involves Stainless Steel or heavy interrupted cuts (like turning a shaft with a keyway), switch to US735 for its superior 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.