Whiteside UD5163 Up/Down Cut Spiral 3+3, 1/2"SH, 1/2"CD, 1-5/8"CL

Whiteside UD5163 Up/Down Cut Spiral 3+3, 1/2"SH, 1/2"CD, 1-5/8"CL works wonderfully with Natural woods, composites, hard plastics, thin aluminum, achieving great results at 16,000-18,000 (max 24,000). Highlights: Made from solid carbide, each bit has both up cut and down cut flutes to provide a smooth cut to both the top and bottom side of your project.