Mitsubishi SNMG120408-MA UE6020 Turning Insert | Steel Machining
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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 →
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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.