Korloy CCMT120404-HMP NC3020 Steel Turning Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy CCMT120404-HMP NC3020 is a high-performance turning insert specifically engineered for carbon steel and alloy steel. As a larger size-12 insert, it provides exceptional stability for machining medium to large-sized components, while the HMP chipbreaker ensures superior chip control across various cutting speeds.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | CCMT120404-HMP |
| Grade | NC3020 (CVD Coated for Steel) |
| Nose Radius | 0.4 mm (Precision Finishing) |
| Ideal For | Carbon Steel, Alloy Steel, Tool Steel |
Core Performance Benefits:
- Optimized HMP Chipbreaker: Designed for versatile chip breaking in steel, effectively preventing "bird's nesting" even at moderate feed rates.
- High Wear Resistance: The thick CVD coating (NC3020) provides excellent thermal stability and resistance to flank wear, ensuring consistent results in large-batch production.
- Enhanced Stability: The size-12 thickness (4.76mm) allows for higher cutting forces and better heat dissipation compared to smaller models.
- Precision Edge: Delivers high-quality surface finishes and tight dimensional control on steel workpieces.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Carbon Steel (HB180-280) | 200 - 380 m/min | 0.10 - 0.25 mm/rev | 0.5 - 3.5 mm |
| Alloy Steel (HB280-350) | 150 - 300 m/min | 0.08 - 0.22 mm/rev | 0.5 - 3.0 mm |
Compatible Tool Holders:
To maximize performance, pair this CCMT 12 insert with standard SCLCR/L type tool holders (Size 12):
- External Turning: SCLCR1616H12 / SCLCR2020K12 / SCLCR2525M12
- Boring Bars (Internal): S16Q-SCLCR12 / S20R-SCLCR12 / S25S-SCLCR12
Packaging: Sold as a pack of 10 pieces (1 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.