Mitsubishi DCMT11T304 NX2525 Cermet Turning Insert for Mirror Finish (10pcs)
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DCMT11T304 NX2525
Precision Cermet Grade | High-Speed Mirror Finish | 55° Diamond
Superior Surface Integrity with NX2525
NX2525 Grade (The Cermet Advantage): Mitsubishi's NX2525 is a titanium-based Cermet. It excels where standard carbide fails—specifically in high-speed finishing. Because Cermet is chemically inert to steel, it eliminates "edge welding," ensuring your workpieces come off the machine with a reflective, burnished appearance. It is highly resistant to crater wear and plastic deformation.
DCMT Geometry (Positive Rake): The 55-degree diamond shape with a 7-degree positive relief angle is designed to reduce cutting forces. This makes it ideal for finishing passes where you want to minimize heat transfer to the part, preventing dimensional drift.
0.4mm Finishing Radius: The 04 radius is the universal standard for precision turning. It provides enough edge strength for light semi-finishing while being sharp enough to achieve Ra values as low as 0.4–0.8 μm in optimal conditions.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCMT11T304 | 9.525 mm | 3.97 mm | 0.40 mm |
| Imperial | DCMT32.51 | 3/8" | 5/32" | 0.0157" (1/64") |
Recommended Machining Data
*Cermet performs best at higher speeds. For finishing, ensure the depth of cut is larger than the honed edge radius.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon/Mild Steel | 180 - 420 m/min | 0.05 - 0.20 mm/r | 0.20 - 1.50 mm |
| Alloy Steel (SCM/4140) | 150 - 320 m/min | 0.05 - 0.15 mm/r | 0.20 - 1.20 mm |
Compatible Tool Holders
Maximum stability for high-speed finishing with SDJCR/L or SDUCR/L 11-series holders:
Shop SDJCR 11 HoldersPro-Tip: Cermet (NX2525) vs. Coated Carbide
NX2525 (Cermet): Specifically for a "Mirror" look. Best for continuous cuts at high surface speeds. Not recommended for heavy interruptions or low-speed machining as it may chip.
VP15TF/UE6110 (Carbide): Choose these when you have an interrupted cut (like a keyway) or when machining tough stainless steels where the higher impact strength of carbide is needed.
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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.