Mitsubishi CNMG120408-MA UE6020 Carbide Turning Insert for Steel (10pcs)
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CNMG120408-MA UE6020
Universal Steel Specialist | UE6020 CVD Grade | MA General Purpose Geometry
The Professional Choice for Steel Turning
UE6020 Grade (Advanced CVD Coating): The UE6020 is Mitsubishi’s flagship grade for P-Class (Steel) machining. Utilizing a thick TiCN-Al2O3-TiN CVD coating, it provides an incredible thermal barrier and wear resistance. This grade excels in medium-speed applications where consistency and tool life predictability are essential for automated production.
MA Chipbreaker (Medium Cut Precision): The MA geometry is a versatile medium-range chipbreaker. It features a unique land and groove design that ensures excellent chip control across a wide range of feed rates. It effectively breaks chips in soft steels that typically cause "stringing" issues.
0.8mm (1/32") Industry Standard Radius: The 08 radius is selected for its high edge security. It is strong enough for light roughing through surface scale while maintaining the ability to produce a high-quality (Ra) surface finish in semi-finishing operations.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG120408-MA | 12.7 mm | 4.76 mm | 0.80 mm |
| Imperial | CNMG432-MA | 1/2" | 3/16" | 0.0315" (1/32") |
Recommended Cutting Parameters
*Optimized for General Purpose Turning. Use dry cutting or flood coolant for enhanced tool life.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Mild Steel (A36 / 1018) | 200 - 400 m/min | 0.15 - 0.45 mm/r | 0.80 - 4.50 mm |
| Alloy Steel (4140 / 4340) | 150 - 320 m/min | 0.15 - 0.35 mm/r | 0.80 - 3.50 mm |
Compatible Tool Holders
Maximum performance with DCLNR/L 12 and MCLNR/L 12 series holders:
Shop DCLNR 12 HoldersPro-Tip: UE6020 vs. MC6025
UE6020 (Reliability King): The go-to choice for general steel turning. It handles light interruptions better and is very forgiving across different machine types.
MC6025: Mitsubishi's newer generation grade. Choose MC6025 if you are looking to increase cutting speeds in high-stability environments for pure efficiency.
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