LMT Onsrud - 60-908 1/2" Cut Diameter Downcut Router BitTriple flute solid carbide cutter with downcut low Helix Finisher for woods, solid surfaces and hard plastic. Cut Diameter: 1 2" Shank: 1 2" Cut Length: 1 5 8" Overall Length: 3 1 2" Flutes: 3 Flute Type: Downcut It is especially popular when working with laminated materials or thin flexible sheets. The triple flute is stronger than a single fluted router bit and produces a finer finish. The down spiral geometry pushes the material downwards so it is