Mitsubishi SNMG120408-MA UE6020 Turning Insert | Steel Machining
30-Day Free Returns
Free Worldwide Shipping
SNMG120408-MA UE6020
Mitsubishi Materials | The Industry Standard for Versatile Steel Turning
The Mitsubishi SNMG120408-MA UE6020 is a high-performance indexable carbide insert engineered for medium-duty steel turning. Featuring the widely trusted UE6020 CVD coating, this insert provides an exceptional balance of toughness and wear resistance. Optimized for ISO P-class materials, it excels in carbon and alloy steels, making it a staple for CNC shops requiring consistent tool life and high-speed efficiency.
Packaging: Genuine Mitsubishi Box of 10 Inserts
ISO Designation Decoded
Square 90°
0° Relief
M-Class Tol.
Double Sided
12.7mm Size
4.76mm Thick
0.8mm Radius
Chipbreaker
Technical Specifications
| Feature | Metric (ISO) | Inch (ANSI) Equivalent |
|---|---|---|
| Model Name | SNMG120408-MA | SNMG 432-MA |
| Inscribed Circle ($IC$) | 12.7 mm | 0.500" (1/2") |
| Thickness ($S$) | 4.76 mm | 0.187" (3/16") |
| Corner Radius ($RE$) | 0.8 mm | 0.031" (1/32") |
UE6020 Carbide Grade
The UE6020 grade is a versatile CVD coated carbide designed for stable machining of steel. The coating features a specialized Al2O3 layer that provides excellent thermal protection, allowing for high cutting speeds without compromising tool life. It is particularly effective at resisting plastic deformation and flank wear during long-duration turning operations.
MA Medium Chipbreaker
The MA chipbreaker is a medium-cutting geometry that balances cutting edge strength with chip evacuation efficiency. It features a wide application range for medium roughing and finishing. By controlling chip flow effectively, it prevents damage to the workpiece surface and is ideal for automated CNC lathe production where chip entanglement must be avoided.
Recommended Cutting Parameters
Starting Data for Steel Turning (UE6020)
| Workpiece Material | Cutting Speed ($v_c$) | Feed Rate ($f$) | Depth of Cut ($a_p$) |
|---|---|---|---|
| Carbon Steel ($<225$ HB) | 150 - 350 m/min | 0.15 - 0.45 mm/rev | 1.0 - 4.0 mm |
| Alloy Steel ($>225$ HB) | 120 - 280 m/min | 0.15 - 0.40 mm/rev | 1.0 - 3.5 mm |
TOOL HOLDER INTEGRATION
Pairs with standard PSSNR/L, DSBNR/L, or MSKNR/L 90° turning tool holders.
Shop Tool Holders →