Mitsubishi DCMT11T304 UE6020 Carbide Turning Insert for Steel (10pcs)
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DCMT11T304 UE6020
General Steel Specialist | UE6020 CVD Coating | 55° Diamond Profile
Maximum Versatility for Steel Alloys
UE6020 Grade (The Steel Workhorse): Mitsubishi’s UE6020 is a premier CVD-coated carbide grade designed for the stable machining of carbon and alloy steels (P10–P35 range). The multi-layer coating (TiCN+Al2O3+TiN) provides an exceptional thermal barrier, allowing for high-speed operation while protecting the substrate from plastic deformation.
DCMT Geometry (Positive Chipbreaker): The 55-degree diamond shape with a 7-degree positive relief angle ensures low cutting resistance. This geometry "shears" the steel cleanly, significantly improving surface finish and reducing heat buildup in the workpiece.
0.4mm Precision Radius: The "04" radius is the universal choice for finishing. It provides high dimensional accuracy and low radial force, making it ideal for precision profiling and finishing passes on components with tight tolerances.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCMT11T304 | 9.525 mm | 3.97 mm | 0.40 mm |
| Imperial | DCMT32.51 | 3/8" | 5/32" | 0.0157" (1/64") |
Recommended Machining Parameters
*Optimized for high-speed continuous turning in carbon and alloy steels.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon Steel (1045/S45C) | 180 - 350 m/min | 0.08 - 0.22 mm/r | 0.30 - 2.00 mm |
| Alloy Steel (4140/SCM440) | 150 - 280 m/min | 0.08 - 0.18 mm/r | 0.30 - 1.50 mm |
Compatible Tooling
Ensure maximum rigidity 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. It offers the best wear resistance and highest cutting speeds.
US735 (Stainless Specialist): If you switch to Stainless Steel or encounter heavily interrupted cuts (hexagons/flats), switch to US735 for its superior fracture toughness.
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This Mitsubishi insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.