Mitsubishi SCMT120408 UE6020 Carbide Insert | Genuine MMC Japan
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SCMT120408 UE6020
Mitsubishi Materials | The Standard for General Steel Turning
The Mitsubishi SCMT120408 UE6020 is a premium indexable turning insert engineered for reliability across various steel machining operations. Featuring the versatile UE6020 CVD coating, this insert excels in general-purpose steel turning, providing an ideal balance between wear resistance and toughness. The 0.8mm nose radius ensures a high-strength cutting edge, making it the preferred choice for CNC machining of carbon and alloy steels in both continuous and light interrupted cuts.
ISO Designation Decoded
Square 90°
7° Relief Angle
M-Class Tolerance
With Hole
12.7mm Size
4.76mm Thick
0.8mm Radius
Technical Specifications
| Feature | Metric Designation | Inch (ANSI) Designation |
|---|---|---|
| Inscribed Circle ($IC$) | 12.7 mm | 1/2" (SCMT 432) |
| Thickness ($S$) | 4.76 mm | 3/16" |
| Nose Radius ($R_e$) | 0.8 mm | 1/32" |
| Coating Type | UE6020 (CVD Al2O3 / TiCN) |
UE6020 Material Technology
The UE6020 grade is Mitsubishi's flagship choice for steel (ISO P-class). It features a multi-layered CVD coating designed to withstand the high temperatures of high-speed turning while maintaining edge toughness. It is particularly effective at preventing flank wear and plastic deformation, ensuring a long and predictable tool life in everyday workshop conditions.
Strong Corner Geometry
The 0.8mm nose radius (08) provides extra strength at the tip, allowing for significantly higher feed rates compared to 0.4mm variants. This radius size is the industry standard for medium-duty roughing to semi-finishing, providing a high-quality surface finish without compromising on cutting speed or durability.
Recommended Cutting Parameters
Primary Application: Steel (ISO P20 - P35)
| Material Group | Cutting Speed ($v_c$) | Feed Rate ($f$) | Depth of Cut ($a_p$) |
|---|---|---|---|
| Mild/Carbon Steel | 180 - 320 m/min | 0.15 - 0.40 mm/rev | 1.0 - 4.5 mm |
| Alloy Steel | 150 - 280 m/min | 0.12 - 0.35 mm/rev | 0.8 - 3.5 mm |
LATHE TOOL HOLDER COMPATIBILITY
The SCMT1204 series is optimized for Mitsubishi SSDCN or SSBCR/L external turning tool holders.
View Matching Holders →
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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.