Amana tool 49610 Carbide Tipped Beading 5/16 R x 1-1/8 D x 1/2 CH x 1/2 Inch SHK Router Bit

2 Flute with 3/8" Diameter Ball Bearing Cut a quarter-round shape bounded by fillets, known as a bead, is produced in one pass by this bit. The width of one fillet is set by the pilot bearing size, while the other is controlled by the depth of cut. 2-Flute Industrial quality Carbide tippedA beading bit can be transformed into a corner rounding bit by changing the bearing (and vice versa).