Mitsubishi DCMT11T302-MV AP25N Cermet Turning Insert for Fine Finishing
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DCMT11T302-MV AP25N
Mirror Finish Specialist | AP25N Cermet Technology | Precision 0.2mm Radius
Superior Surface Integrity in Precision Turning
AP25N Grade (Advanced Cermet): The AP25N is a PVD-coated Cermet (Ceramic-Metal) grade. Unlike standard carbide, Cermet has a low affinity for metal, which virtually eliminates "Built-up Edge" (BUE). This makes it the premier choice for achieving high-gloss, mirror-like surface finishes on carbon steel, alloy steel, and even some stainless steels.
MV Chipbreaker (Micro-V Geometry): The MV geometry is optimized for stable chip control at very shallow depths of cut. It ensures that the microscopic chips generated during finishing passes are effectively evacuated, preventing "scratches" on your precision-turned workpiece.
0.2mm Radius (Ultra-Fine Detail): The sharp "02" (1/128") radius is engineered to minimize radial cutting forces. It is the ideal selection for machining long, slender shafts or thin-walled components where vibration (chatter) is a risk.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCMT11T302-MV | 9.525 mm | 3.97 mm | 0.20 mm |
| Imperial | DCMT32.50.5-MV | 3/8" | 5/32" | 0.0078" |
Recommended Finishing Parameters
*AP25N performs best at high speeds. Avoid interrupted cuts to prevent cermet fracturing.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon/Alloy Steel | 150 - 300 m/min | 0.03 - 0.12 mm/r | 0.10 - 0.80 mm |
| Stainless Steel (300 series) | 100 - 200 m/min | 0.03 - 0.10 mm/r | 0.10 - 0.50 mm |
Compatible Tool Holders
Achieve precision with 11-series SDJCR/L or SDUCR/L holders:
Shop Compatible HoldersPro-Tip: AP25N vs. UE6110
AP25N (Cermet): Your first choice for aesthetics and tolerance. Use this for the final pass to get a "bright" finish. It lasts much longer in light finishing than standard carbide.
UE6110 (CVD Carbide): Switch back to UE6110 for roughing or when the material is scaled or hardened. Cermet (AP25N) is brittle and should not be used for heavy removal or interrupted cuts.
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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.