Mitsubishi DCMT070202 NX2525 Cermet Turning Insert for Steel Finish (10pcs)
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DCMT070202 NX2525
High-Speed Cermet | Mirror Finish Grade | Micro-Precision Radius
Cermet Technology for Reflective Surfaces
NX2525 Grade (Advanced Cermet): Mitsubishi's NX2525 is a micro-grain Cermet grade that excels in finishing applications. Unlike carbide, Cermet has high resistance to oxidation and wear at high temperatures. It prevents the formation of "Built-up Edge" (BUE), ensuring that the finished workpiece remains glossy and dimensionally accurate over long production runs.
DCMT Geometry (Positive 55° Diamond): The 55-degree diamond shape provides excellent clearance and versatility. As a positive rake insert, it reduces the force required to peel away chips, which significantly lowers heat generation and protects the integrity of the workpiece surface.
0.2mm Micro-Radius: The "02" radius is designed for the lightest finishing passes. It minimizes radial cutting pressure, preventing vibration (chatter) in small-diameter parts or thin-walled components.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCMT070202 | 6.35 mm | 2.38 mm | 0.20 mm |
| Imperial | DCMT21.50.5 | 1/4" | 3/32" | 0.0078" |
High-Speed Finishing Parameters
*Cermet must be run at high speeds to prevent micro-chipping. Avoid interrupted cuts.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon/Alloy Steel | 180 - 450 m/min | 0.03 - 0.12 mm/r | 0.10 - 1.00 mm |
| Soft Steel / Lead Steel | 200 - 500 m/min | 0.05 - 0.15 mm/r | 0.10 - 0.80 mm |
Compatible Tooling
Works seamlessly with all SDJCR/L or SDUCR/L 07-series holders:
Shop 07 Series Tool HoldersCermet Tip: NX2525 vs. Carbide VP15TF
NX2525 (Cermet): Your first choice for a "shiny" mirror finish. Best for continuous cuts at high speeds. It is more brittle than carbide, so avoid heavy interruptions.
VP15TF (PVD Carbide): Choose this for toughness. Better for interrupted cuts, gummy stainless steels, or when your machine cannot reach the high RPMs required for Cermet.
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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.