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 →