1, 2 or 3 wing: The lowdown on downcut CNC router bits
Down-cut refers to the direction of the flute on the router bit which forces the chips downwards. The downwards flow not only helps to hold the material in place but creates the best finish on the top side of the cut area. It’s used for grooving and pocketing, primarily on MDF and chipboard but it can also be used on vinyl wrapped surfaces.