Korloy CCMT09T304-C25 CN2000 Cermet Mirror Finish Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy CCMT09T304-C25 CN2000 (ANSI: CCMT 32.1) is a high-performance Cermet (Ceramic-Metal) insert, engineered specifically for high-speed finishing operations where surface integrity is critical. Unlike standard carbide, the CN2000 grade maintains its hardness at much higher temperatures, preventing material adhesion and ensuring a mirror-like surface finish on carbon steels, alloy steels, and stainless steels. It is the gold standard for maintaining tight tolerances in long-run production.
Machinist's Tip: Cermet inserts thrive in high-speed, continuous cuts. If you are experiencing "built-up edge" with carbide, switching to CN2000 will dramatically improve your surface brightness.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | CCMT09T304-C25 |
| ANSI Code | CCMT 32.1 |
| Grade | CN2000 (Finishing Cermet) |
| Chipbreaker | C25 (Precision Chip Control) |
Core Performance Benefits:
- Exceptional Surface Finish: Eliminates the need for secondary grinding. Ideal for aesthetic parts and high-precision seals.
- Chemical Stability: Cermet has a low affinity for metal, which means no "welding" or sticking of the workpiece to the tool edge.
- High Red-Hardness: Allows for significantly higher cutting speeds (Vc) than traditional carbide, boosting your daily output.
- Consistent Tolerance: Resists crater and flank wear, ensuring the diameter of your parts stays consistent throughout the shift.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Carbon Steel (1018/1045) | 200 - 400 m/min | 0.05 - 0.15 mm/rev | 0.1 - 1.2 mm |
| Stainless Steel (Precision) | 150 - 300 m/min | 0.04 - 0.12 mm/rev | 0.1 - 0.8 mm |
Compatible Tool Holders:
For mirror finishing, tool rigidity is paramount. Use these SCLCR/L type holders:
- External Turning: SCLCR1212H09 / SCLCR1616H09 / SCLCR2020K09
- Internal Boring Bars: S12M-SCLCR09 / S16Q-SCLCR09 / S20R-SCLCR09
The Cermet Advantage: CN2000 vs. PC5300
Is Cermet right for your application?
Best for high-speed finishing and achieving maximum brightness. Use in stable, continuous cuts only.
Best for roughing, semi-finishing, or interrupted cuts. More durable but lacks the surface shine of Cermet.
Warning: Cermet is brittle. Avoid using it on manual lathes with excessive play or on parts with heavy cross-holes/interruptions.
Packaging: 10 pieces per box.
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.