Downcut router bits are used when the top surface of the material needs to have an excellent finish. The common applications are grooving and pocketing. Increase the number of flutes if fast feedrate is required. Great for solid wood, chipboard, MDF, laminates, veneered plywood and a variety of other materials. Used on 5 axis, point-to-point machines, router tables, handheld routers. 6% Cobalt is a carbide grade best suited for HPL and composites, 10% Cobalt is a Carbide Grade best suited for solid wood. Tools last longer when paired correctly.