Easily conceal and beautify Imperfect seams on cabinetry and face frame projects. This bit will trim flush while adding a "V" Groove along the seam of two adjoining boards. For use with soft & hard woods, ply-woods, composites, laminates, plastics and some non-ferrous metals. Designed to provide precise, efficient cuts and extremely Durable. The enclosed ball bearing guide ensures smooth running. 1/4" Shank.