Mitsubishi CNMG120408-MH UE6020 Carbide Turning Insert (10pcs)
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CNMG120408-MH UE6020
The Medium Turning Standard | UE6020 Impact Toughness | MH Universal Geometry
The Universal Choice for Steel Productivity
UE6020 Grade (The Fracture Barrier): The UE6020 is a high-toughness CVD-coated grade specialized for P-Class (Steel) turning. It features a specialized multi-layer coating that provides a high degree of resistance to flank wear and cratering. Its greatest strength lies in its ability to prevent edge fracture during interrupted cuts or when machining parts with a rough, uneven surface.
MH Chipbreaker (Universal Medium Cutting): The MH geometry is the first choice for medium-range cutting. It balances a sharp cutting edge with a reinforced land, allowing for smooth chip breaking across a broad spectrum of feed rates. This eliminates the need for tool changes between semi-roughing and semi-finishing passes, significantly reducing cycle times.
0.8mm (1/32") Corner Radius: The 08 radius is the most popular size for general-purpose turning. It provides excellent edge strength while maintaining low enough cutting forces to be used on a wide variety of lathe sizes and power ratings.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG120408-MH | 12.7 mm | 4.76 mm | 0.80 mm |
| Imperial | CNMG432-MH | 1/2" | 3/16" | 0.0315" (1/32") |
Universal Cutting Parameters
*The MH chipbreaker handles varying conditions well. Always monitor tool wear and adjust speeds accordingly.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Mild Steel (S15C/S20C) | 180 - 320 m/min | 0.20 - 0.45 mm/r | 1.00 - 4.50 mm |
| Alloy Steel (4140/SCM440) | 140 - 250 m/min | 0.15 - 0.40 mm/r | 0.80 - 3.50 mm |
Compatible Tool Holders
Standardize your setup with DCLNR/L 12 or PCLNR/L 12 series holders:
Shop DCLNR 12 HoldersPro-Tip: UE6020 vs. MC6025
UE6020 (The Impact Fighter): Choose this grade for jobs with unstable parts, interruptions, or older machines. It is the toughest "all-rounder" for steel.
MC6025 (The High-Speed All-Rounder): Switch to MC6025 for high-speed continuous cutting in stable environments to maximize tool life and throughput.
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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.