Korloy CCMT060204-C25 CN2000 Cermet Finishing Insert (10pcs)
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The Original Korloy CCMT060204-C25 CN2000 (ANSI: CCMT 21.1) is a premium Cermet (Ceramic-Metal) insert engineered for high-speed finishing of carbon and alloy steels. Unlike standard carbide, the CN2000 cermet grade provides exceptional chemical stability and wear resistance at high temperatures, effectively preventing the workpiece material from welding to the edge. This makes it the ultimate choice for achieving mirror-like surface finishes and maintaining tight dimensional tolerances over long production runs.
Precision Tip: Cermet inserts perform best at high speeds and light depths of cut. For high-speed precision boring, this C25 chipbreaker provides superior chip control.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | CCMT060204-C25 |
| Grade | CN2000 (Cermet for Steel Finishing) |
| Nose Radius | 0.4 mm (1/64") |
| Chipbreaker | C25 (Optimized for Finishing) |
Core Performance Benefits:
- Superior Surface Finish: Achieve Ra values comparable to grinding. The low affinity for steel ensures a clean, shiny surface without tearing.
- Excellent Wear Resistance: The CN2000 grade maintains a sharp edge significantly longer than carbide when running at high surface speeds (Vc).
- High Dimensional Accuracy: Because cermet resists crater wear and flank wear so effectively, your part dimensions stay consistent from the first piece to the last.
- Optimized for Steel: Ideal for carbon steel, alloy steel, and pre-hardened steels up to 45 HRC.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Low Carbon Steel | 200 - 450 m/min | 0.05 - 0.15 mm/rev | 0.1 - 1.0 mm |
| Alloy Steel (4140/8620) | 150 - 350 m/min | 0.04 - 0.12 mm/rev | 0.1 - 0.8 mm |
Compatible Tool Holders:
For high-speed finishing, a rigid setup is essential. Use these precision SCLCR/L holders:
- Boring Bars (Internal): S08K-SCLCR06 / S10K-SCLCR06 / S12M-SCLCR06
- External Turning: SCLCR1010H06 / SCLCR1212H06
Tech Guide: Cermet (CN2000) vs. Carbide (PC5300)
When to switch to Cermet:
Best for high-speed finishing where surface brightness and tight tolerances are the top priority. Avoid interrupted cuts.
Best for roughing, semi-finishing, and interrupted cuts. Offers much higher toughness but lower surface brightness than cermet.
Machinist's Tip: Cermet is more brittle than carbide. Never use it for heavy interrupted cuts or on manual lathes with significant backlash.
Packaging: 10 pieces per box.