Whiteside UD4125 Up/Down Cut Spiral 1+1, 3/8"SH, 3/8"CD, 1-1/4"CL

Whiteside UD4125 Up/Down Cut Spiral 1+1, 3/8"SH, 3/8"CD, 1-1/4"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 contains an up cut and down cut flute. This flute design creates a compression cut that prevents fraying and splintering. Compression spirals will save you time and money on finishing your projects edges by reducing sanding time.