Mitsubishi CNMG120408-MS UE6020 Carbide Turning Insert (10pcs)
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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.
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Looking for a Mitsubishi equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
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.