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.