Mitsubishi DCGT070204L-F NX2525 Cermet Mirror Finish Insert (10pcs)
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DCGT070204L-F NX2525
Precision Ground Cermet | NX2525 Mirror Finish | F-Finishing Geometry
Superior Surface Engineering
NX2525 Grade (High-Tech Cermet): The NX2525 is a premium micro-grain Cermet. Unlike standard carbide, Cermet maintains a sharp edge at much higher temperatures and does not weld to the workpiece. This prevents the "tearing" of the metal surface, resulting in a **reflective, mirror-like finish** on carbon steels, alloy steels, and ductile irons.
F Chipbreaker (High-Precision Finisher): The F-geometry is a sharp, positive rake breaker designed specifically for light depths of cut. It excels at breaking fine, "needle-like" chips at high surface speeds, ensuring the chips do not scratch the freshly machined surface.
Precision Ground (G-Class): Every **DCGT** insert is precision ground on its periphery. This provides a level of indexing accuracy that molded (M-class) inserts cannot match, making it the primary choice for tight-tolerance CNC Swiss and Lathe operations.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCGT070204L-F | 6.35 mm | 2.38 mm | 0.40 mm |
| Imperial | DCGT21.51L-F | 1/4" | 3/32" | 0.0157" |
Recommended Steel Finishing Parameters
*Cermet performs best at high speeds. If speed is too low, tool life may decrease due to micro-chipping.
| Material Group | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Low Carbon Steel | 200 - 450 m/min | 0.05 - 0.15 mm/r | 0.10 - 1.00 mm |
| Alloy Steel (Hardened) | 150 - 300 m/min | 0.04 - 0.12 mm/r | 0.10 - 0.80 mm |
Compatible Left-Hand Holders
Maximum stability for left-hand (L) orientation inserts with SDJCL or SDUCL holders:
Shop Left-Hand 07 HoldersPro-Tip: Cermet NX2525 vs. Carbide VP15TF
NX2525 Cermet: Your specialist for high-speed finishing. Use it when the customer requires a "shiny" finish and the cut is continuous.
VP15TF Carbide: Your generalist for all-day use. Choose it for interrupted cuts, gummy stainless steel, or when your machine cannot reach high cermet speeds.
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