Korloy CCMT120408-HMP PC9030 Robust Stainless Steel Turning Insert (10pcs)
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The Original Korloy CCMT120408-HMP PC9030 is built for maximum metal removal rates in challenging stainless steel applications. By combining the large size-12 substrate with a robust 0.8mm (R0.8) nose radius, this insert offers the highest edge security in its class. Whether you are dealing with the hard "skin" of a stainless casting or performing heavy semi-finishing on 304/316 alloys, the PC9030 grade ensures consistent performance and excellent heat resistance.
Efficiency Tip: Need to maximize production on Swiss-style or small lathes? Explore our Swiss Machining Specialist Guide.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | CCMT120408-HMP |
| Grade | PC9030 (PVD Stainless Specialist) |
| Nose Radius | 0.8 mm (High Strength / High Feed) |
| Chipbreaker | HMP (Balanced Performance) |
Core Performance Benefits:
- Exceptional Edge Security: The R0.8 radius provides a thicker cross-section at the cutting point, making it highly resistant to chipping during interrupted cuts.
- Increased Productivity: Allows for higher feed rates (mm/rev) compared to R0.4 inserts, significantly reducing cycle times on large workpieces.
- Advanced PVD Coating: The PC9030 technology prevents the "gummy" stainless steel from welding to the insert, maintaining a sharp cutting edge for longer.
- Enhanced Thermal Mass: The larger CCMT 12 size absorbs and dissipates cutting heat more effectively, protecting the substrate during long, continuous cuts.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Stainless Steel (304/316) | 100 - 170 m/min | 0.12 - 0.28 mm/rev | 0.8 - 3.5 mm |
| Duplex / Alloy Steel | 50 - 110 m/min | 0.10 - 0.22 mm/rev | 0.8 - 3.0 mm |
Compatible Tool Holders:
To support the high-feed capabilities of the R0.8 radius, we recommend using high-rigidity SCLCR/L tool holders:
- External Turning: SCLCR2020K12 / SCLCR2525M12
- Boring Bars (Internal): S25S-SCLCR12 / S32T-SCLCR12
Pro Tip: Choosing the Right Radius
Optimizing your CCMT12 results:
Best for fine finishes and maintaining low radial pressure in precision bores.
Best for semi-roughing and general turning. Superior tool life when removing large volumes of stainless steel.
Machinist's Tip: When using R0.8, ensure your machine has enough horsepower and rigidity to handle the increased cutting forces for maximum stability.
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.