Description These CMT high speed steel mortising bit sets allow the user to make square holes in wood for mortise and tenon joints. They can be used on a drill press with an installed mortising attachment or on dedicated mortising machines. The chisels all have a 3/4″ shank to fit the bell housing of the mortising machine or attachment and the drill bits come in sizes from 1/4″ to 3/4″ diameter. 543.064.51 – ¼” 543.095.51 – 3/8” 543.127.51 – ½” 543.158.51 – 5/8” 543.190.51 – ¾”
