Mitsubishi SNMG120404-MA UE6020 Turning Insert | Steel Specialist
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SNMG120404-MA UE6020
Mitsubishi Materials | The Versatile Standard for Steel Turning
The Mitsubishi SNMG120404-MA UE6020 is a high-performance indexable turning insert designed for medium-duty steel machining. Featuring the legendary UE6020 CVD coating, this insert provides an exceptional balance of wear resistance and fracture toughness. Optimized for ISO P-class materials, it is the go-to choice for CNC operators seeking reliability across a wide range of cutting speeds and carbon steel grades.
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
0.4mm Radius
Chipbreaker
Technical Specifications
| Feature | Metric (ISO) | Inch (ANSI) Equivalent |
|---|---|---|
| Model Name | SNMG120404-MA | SNMG 431-MA |
| Inscribed Circle | 12.7 mm | 0.500" (1/2") |
| Thickness | 4.76 mm | 0.187" (3/16") |
| Corner Radius | 0.4 mm | 0.016" (1/64") |
UE6020 Grade Technology
The UE6020 grade is a CVD coated carbide featuring a multi-layered TiCN + Al2O3 + TiN coating. It is specifically engineered to handle stable steel turning operations. This grade excels in resisting plastic deformation and crater wear at medium to high cutting speeds, ensuring long tool life in carbon, alloy, and tool steels.
MA Chipbreaker Design
The MA chipbreaker is Mitsubishi's versatile medium-cutting geometry. It is designed to provide smooth chip flow and reduced cutting resistance across a wide range of depths of cut. This helps in preventing chip entanglement, protecting the workpiece surface, and improving the efficiency of CNC turning on both low and high carbon steels.
Recommended Cutting Parameters
| Material Group | Cutting Speed ($v_c$) | Feed Rate ($f$) | Depth of Cut ($a_p$) |
|---|---|---|---|
| Mild Steel ($<225$ HB) | 150 - 320 m/min | 0.15 - 0.35 mm/rev | 1.0 - 4.0 mm |
| Alloy Steel ($>225$ HB) | 100 - 250 m/min | 0.10 - 0.30 mm/rev | 1.0 - 3.5 mm |
TOOL HOLDER COMPATIBILITY
Compatible with standard PSSNR/L, DSBNR/L, or MSKNR/L turning tool holders.
Shop External Tool Holders →
Need Help With Mitsubishi Inserts?
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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.