DownCut Spiral Plunge Router Bit 1/4 inch Shank, 1/16 inch Cutting Diameter Solid Carbide with Nano Blue Coating CNC Router Bits End Mill for Wood Cut, Carving D2105A This 2F plunge solid carbide router bit, Spiral up cut router bit with 1/16" X 1/2" X 1/4" X 2" ,shank 1/4 . using for small and deep cutting. working in plastic , ABS, Acrylic, Laminate, PS, wood and so on.