Korloy CCMT09T304-C25 PC9030 Fine Finishing Stainless Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy CCMT09T304-C25 PC9030 (ANSI: CCMT 32.1) is a specialized tool designed for ultra-precision finishing of stainless steel. While standard inserts focus on general turning, the C25 chipbreaker features a high-positive rake angle and an extra-sharp edge specifically engineered to "slice" through gummy materials like 304 and 316L. Paired with the premium PC9030 PVD coating, it delivers superior surface gloss and exceptional dimensional stability.
Precision Specialist: The C25 chipbreaker is designed for lighter depths of cut than the HMP series, making it the perfect choice for high-precision boring and medical-grade component manufacturing.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | CCMT09T304-C25 |
| ANSI Code | CCMT 32.1 |
| Grade | PC9030 (Premium PVD for Stainless) |
| Nose Radius | 0.4 mm (1/64") - Fine Finishing |
Core Performance Benefits:
- Ultra-Sharp Cutting Edge: The C25 geometry minimizes radial cutting forces, effectively preventing vibration (chatter) in small-diameter boring or long-reach applications.
- Superior Anti-Adhesion: PC9030 PVD coating prevents "stickiness" in stainless steel, ensuring the edge remains sharp and the workpiece remains burr-free.
- Exceptional Surface Ra: Achieve mirror-like finishes directly on the machine, reducing or eliminating the need for post-process polishing.
- Stable Tool Life: High chemical stability makes it resistant to crater wear, even at higher surface speeds.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Austenitic Stainless (304/316) | 100 - 180 m/min | 0.05 - 0.12 mm/rev | 0.1 - 1.0 mm |
| Heat Resistant Alloys | 30 - 70 m/min | 0.04 - 0.10 mm/rev | 0.1 - 0.8 mm |
Compatible Tool Holders:
Ensure the best finishing results with precision-ground SCLCR/L tool holders:
- External Turning: SCLCR1212H09 / SCLCR1616H09 / SCLCR2020K09
- Internal Boring Bars: S12M-SCLCR09 / S16Q-SCLCR09 / S20R-SCLCR09
Finishing Pro-Tip: C25 vs. HMP Chipbreaker
Choosing the right geometry for your project:
A great versatile choice for semi-finishing to finishing. Stronger edge for general stainless work.
Sharper rake angle for super-fine finishing. Best for preventing chatter and achieving the highest gloss.
Machinist's Tip: If your R0.4 HMP insert is creating too much tool pressure and causing vibration in thin walls, switch to the C25 chipbreaker for a cleaner cut.
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.