Amana Tool 46348 CNC Solid Carbide Spiral Plunge for Solid Wood 1/4 D x 1 CH x 1/4 SHK x 2-1/2 Inch Long Down-Cut Router Bit

Solid Carbide Spiral Flute Plunge Router Bits for Solid Wood
Spiral bits combine a shearing action in cutting with an augering action in chip clearance. The shearing action yields an especially clean & accurate cut, while the augering action clears chips from the cut. The “down-cut” cuts from the surface down, leaving a smooth edge at the surface of the wood.