Mitsubishi CNMG120404-MA UE6020 Carbide Insert for Steel Finishing (10pcs)
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💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
CNMG120404-MA UE6020
Steel Finishing Specialist | UE6020 CVD Grade | Precision 0.4mm Radius
Optimized for Steel Precision
UE6020 Grade (CVD Coating): UE6020 is Mitsubishi’s premium CVD-coated grade optimized for P-Class (Steel) turning. It features a triple-layer coating (TiCN-Al2O3-TiN) that provides exceptional resistance to crater wear and plastic deformation. This grade is designed for stable, high-speed continuous turning where tool life consistency is paramount.
MA Chipbreaker (Finishing to Medium Cut): The MA geometry is engineered with a specialized chip-curling ridge. It excels at breaking chips at shallow depths of cut, which is critical during finishing passes to prevent surface scratching and "bird-nesting" on the workpiece.
0.4mm (1/64") Precision Radius: The 04 radius is the professional's choice for reducing cutting resistance. By minimizing the contact area between the tool and the part, it significantly reduces the risk of chatter in long-overhang boring or thin-walled turning.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG120404-MA | 12.7 mm | 4.76 mm | 0.40 mm |
| Imperial | CNMG431-MA | 1/2" | 3/16" | 0.0157" (1/64") |
Recommended Cutting Parameters
*Optimized for finishing. High speeds (Vc) are necessary to maximize the benefits of the CVD coating.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon Steel (1045 / S45C) | 180 - 350 m/min | 0.05 - 0.20 mm/r | 0.20 - 1.50 mm |
| Alloy Steel (4140 / SCM440) | 150 - 300 m/min | 0.08 - 0.18 mm/r | 0.20 - 1.20 mm |
Required Tool Holders
Maximum clamping stability for DCLNR/L 12 and MCLNR/L 12 series holders:
Shop DCLNR 12 HoldersPro-Tip: UE6020 vs. VP15TF
UE6020 (Steel Master): Best for continuous steel turning at high speeds. The thick CVD coating offers superior tool life in dry or high-heat environments.
VP15TF (The Generalist): Choose VP15TF for interrupted cuts, stainless steel, or when you are alternating between multiple material types in small batches.
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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.