Whiteside RU5200T Up Cut Triple Flute Spiral 1/2"SH, 1/2"CD, 2"CLWhiteside RU5200T Up Cut Triple Flute Spiral 1 2"SH, 1 2"CD, 2"CL Product Description Three flute design allows these bits to provide the best finish on your project. Up cut spiral design provides the best control with hand or table routing. When creating dado's this design brings chips up and out of the cut. Materials: Natural woods, composites, hard plastics, thin aluminum Recommended RPM: 16,000 18,000 (max 24,000)