Mitsubishi CPMH090304-MV UE6020 Steel Turning Insert (10pcs)
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CPMH090304-MV UE6020
Medium Steel Specialist | UE6020 Toughness | MV Precision Control
Optimized for Steel Stability
UE6020 Grade (CVD Multi-Layer Coating): The UE6020 is a versatile CVD-coated grade engineered for P-Class (Steel). It features a specialized TiCN + Al2O3 coating layer that protects the carbide substrate from the high temperatures generated during steel turning. It is particularly renowned for its resistance to Built-Up Edge (BUE) and its ability to withstand interrupted cuts without fracturing.
MV Chipbreaker (Medium-Cut Geometry): The MV chipbreaker is designed for the 11-degree positive CPMH series. It features a balanced rake angle that provides a sharp cutting action while maintaining edge strength. This geometry excels at breaking chips in carbon steel, preventing long, wiry ribbons that can damage the workpiece surface or interfere with automated production.
0.4mm (1/64") Precision Radius: The 04 radius is the ideal choice for finishing and semi-finishing. It minimizes radial cutting forces, which is essential for preventing chatter in long-reach boring bars or slender workpieces.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CPMH090304-MV | 9.525 mm | 3.18 mm | 0.40 mm |
| Imperial | CPMH321-MV | 3/8" | 1/8" | 0.0157" (1/64") |
Steel Cutting Parameters
*The CPMH09 size provides better stability for deeper cuts. Use flood coolant for optimal tool life in alloy steels.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon Steel (1045) | 140 - 270 m/min | 0.08 - 0.25 mm/r | 0.30 - 2.50 mm |
| Alloy Steel (4140) | 110 - 210 m/min | 0.06 - 0.20 mm/r | 0.25 - 1.80 mm |
Compatible Tool Holders
The CPMH 09 size fits SCLC or SCPC series holders and boring bars:
Shop 09 Series HoldersPro-Tip: UE6020 vs. NX2525
UE6020 (The Versatile Tough Grade): Use this as your primary grade for steel roughing and finishing, especially where the cut is not perfectly continuous.
NX2525 (The High-Speed Cermet): Switch to NX2525 if your machine can reach high speeds and you need a mirror-like surface finish on finishing passes.
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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.