Mitsubishi CNMG120408-MS UE6020 Carbide Turning Insert (10pcs)
30-Day Free Returns
Free Worldwide Shipping
CNMG120408-MS UE6020
General Steel Specialist | UE6020 Tough CVD | MS Chip Control Geometry
The Foundation of Reliable Steel Turning
UE6020 Grade (The Industry Workhorse): The UE6020 grade is a triple-layered CVD-coated carbide. It is engineered for P-Class (Steel) materials, focusing on high fracture toughness. It is designed to survive where high-speed grades fail—specifically in unstable machine environments, interrupted cuts, or when machining through surface scale and crust on hot-rolled steels.
MS Chipbreaker (Medium-Sharp Control): The MS geometry is an optimized chipbreaker that bridges the gap between finishing and medium roughing. It features a sharp cutting edge that reduces "plowing" forces, which is essential for maintaining control over long, stringy chips often produced by low-carbon steels and mild alloys.
0.8mm (1/32") Universal Radius: The 0.8mm radius is the gold standard for versatility. It provides the mechanical strength needed for significant depths of cut while still being capable of achieving high-quality surface finishes (Ra) on the final pass.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG120408-MS | 12.7 mm | 4.76 mm | 0.80 mm |
| Imperial | CNMG432-MS | 1/2" | 3/16" | 0.0315" (1/32") |
Recommended Cutting Parameters
*The UE6020 grade is built for reliability. Values below are starting points for general steel turning.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Mild/Carbon Steel (1045) | 150 - 300 m/min | 0.12 - 0.40 mm/r | 0.50 - 4.00 mm |
| Alloy Steel (4140) | 120 - 250 m/min | 0.15 - 0.35 mm/r | 0.80 - 3.50 mm |
Compatible Tool Holders
Maximum performance is achieved with DCLNR/L 12 and MCLNR/L 12 series holders:
Shop DCLNR 12 HoldersPro-Tip: UE6020 vs. MC6025
UE6020 (The Tough Standard): The classic choice. Superior for heavy interruptions and varied steel types in manual or semi-automated CNC operations.
MC6025 (The Modern All-Rounder): Choose MC6025 if you are running modern, rigid CNC machines and want slightly higher cutting speeds while maintaining the same reliability as UE6020.
Search Keywords: CNMG120408-MS UE6020 price, Mitsubishi steel turning inserts 10pcs, CNMG432-MS carbide, UE6020 speed and feed steel, MS chipbreaker vs MA chipbreaker.
Long-tail Keywords: Best carbide inserts for general steel turning, Mitsubishi UE6020 vs MC6025 for alloy steel, CNMG 120408-MS for interrupted cuts, buy Mitsubishi CNMG120408-MS online, high toughness CNC inserts for steel.