Mitsubishi DCMT070208 NX2525 Cermet Turning Insert for High-Feed Finish (10pcs)
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DCMT070208 NX2525
High-Speed Cermet | Robust 0.8mm Radius | Mirror Finish Grade
High-Feed Finishing Technology
NX2525 Grade (Titanium Cermet): Mitsubishi's NX2525 is a micro-grain Cermet grade designed for finishing. Unlike tungsten carbide, Cermet has a very low chemical affinity for steel, which prevents the material from "welding" to the insert edge. This eliminates surface tearing and results in a glossy, mirror-like finish. It thrives at high cutting speeds where standard carbide would fail due to heat.
DCMT Geometry (55° Diamond): The 55-degree shape offers the perfect clearance for profiling and facing. The positive rake angle reduces the cutting torque and heat generation, protecting the structural integrity of your workpiece while providing a clean "peeling" cut.
0.8mm Radius (The "Robust" Choice): The 0.8mm (08) radius is significantly stronger than the 0.2mm or 0.4mm versions. It allows for higher feed rates and provides better edge life when machining parts with slight surface scale or inconsistencies.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCMT070208 | 6.35 mm | 2.38 mm | 0.80 mm |
| Imperial | DCMT21.52 | 1/4" | 3/32" | 0.0315" (1/32") |
Recommended Cutting Parameters
*The 0.8mm radius allows for higher productivity. Maintain high surface speeds (Vc) to fully activate the Cermet properties.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon Steel (1045) | 200 - 450 m/min | 0.10 - 0.25 mm/r | 0.30 - 1.80 mm |
| Alloy Steel (4140) | 150 - 350 m/min | 0.08 - 0.20 mm/r | 0.30 - 1.50 mm |
Compatible Tooling
Optimized for use with SDJCR/L or SDUCR/L 07-series screw-lock holders:
Shop 07 Series Tool HoldersCermet Tip: NX2525 vs. Carbide Grade
NX2525 (Cermet): The choice for high-speed continuous finishing. It provides a superior "chrome-like" finish on steel. However, it is sensitive to thermal shock—if using coolant, ensure the flow is high and consistent; otherwise, dry machining is often preferred.
VP15TF (PVD Carbide): Better suited for interrupted cuts, heavy scale, or gummy stainless steel where the toughness of carbide is required.
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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.