CMT bull nose bits give you beautifully finished edges on stair treads, window sills and shelves in one clean cut. For an added touch, try using a cutter with a bead diameter wider than the stock thickness. CMT bull nose bits have bead diameter that range from ¼” (6.4mm) to 1” (25.4mm) and all bits have carbide tipped cutting edges, anti-kickback design and the trademark orange Teflon non-stick coating.