Beading bits are decorative pattern that normally applies to the edge of the wood, in order to produce a rounded shape which is imbedded into the wood. Plunge beading bits produce rounded internal corners that give a special ornamental design.

A Corner beading bit is similar to a round over bit in that it applies a rounded shape to the edge of the stock. The difference between a Corner beading bit and a round over bit is that the beading bit also cuts a square shoulder on the top and bottom edges of the round over.

Corner beading bits often have a ball bearing guide for riding along the edge of the stock as it is cut. For delicate woods, Super Guide^TM ball bearings may be used.  Plunge beading bits may be guided with a fence or by CNC programming.