Korloy WCKT040208-DA H01 High-Speed Aluminum Milling Insert - Mirror Polished (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy WCKT040208-DA H01 is a high-performance W-Style Milling Insert specifically engineered for High-Metal Removal Rates (MRR) in Aluminum and Non-Ferrous Alloys. With an upgraded thickness and size compared to the 03 series, the WCKT 04 allows for deeper axial cuts while maintaining the signature Mirror Finish that Korloy's H01 Uncoated Grade is famous for. The DA Chipbreaker provides a razor-sharp slicing action, essential for reducing heat and preventing material adhesion.
Engineered for Speed: The WCKT040208-DA is the go-to choice for CNC machinists who need to push their spindle to the limit. Its balanced geometry reduces centrifugal forces and cutting vibration, making it ideal for high-speed machining (HSM) centers.
Technical Specifications:
| ISO Designation | WCKT 040208-DA |
| Insert Shape | W-Style (Trigon) |
| Corner Radius (r) | 0.8 mm |
| Grade | H01 (Sub-micron Polished Carbide) |
| Target Materials | Aluminum Alloys, Copper, Plastics, Wood |
Core Performance Benefits:
- Enhanced Structural Strength: The 04 size provides more carbide mass, allowing for aggressive ramping and pocketing without risking insert breakage.
- Micro-Polished Rake Face: Reduces friction coefficient to the absolute minimum, ensuring chips slide off instantly and preventing the dreaded "built-up edge" on the tip.
- Exceptional Sharpness: The DA geometry features a sharp cutting edge that minimizes burr formation, especially on thin-walled aluminum components.
- Extreme Accuracy: Precision-ground H-class tolerance ensures high repeatability and minimal run-out when using multi-insert milling cutters.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed per Tooth (fz) | Max Depth (ap) |
|---|---|---|---|
| Wrought Aluminum (6061) | 500 - 2000 m/min | 0.12 - 0.30 mm/t | Up to 3.5 mm |
| Cast Aluminum (High Si) | 300 - 800 m/min | 0.10 - 0.25 mm/t | Up to 3.0 mm |
Pro Tip: Aluminum Profiling Mastery
Because aluminum transfers heat quickly, maintaining high feed rates (fz) is actually beneficial. It helps carry the heat away within the chip, protecting the insert's edge from softening.
For a final finishing pass, try a very light depth of cut (0.1 - 0.2 mm) at high RPM. The R0.8 radius combined with the polished DA breaker will produce a mirror-like shine.
Packaging: 10 pieces per box.
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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.