CMT 854.509.11 - 1/2" RADIUS BEAD & BULL NOSE ROUTER BITCMT bull nose bits create beautifully finished edges on stair treads, window sills and shelves in a pass Add a final touch by using a cutter with a bead diameter wider than the stock thickness CMT bull nose bits have bead diameters from 6,35mm (1 4") to 25,4mm (1") and each bit features carbide tipped cutting edges, anti kickback design and the orange PTFE non stick coating trademark Safety tips: to be used only on router tables equipped with a fence.