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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Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.