It’s tough to beat the "old faithful" mortise and tenon joint for strength and accuracy, even with all the other joining options in the world of woodworking. It isn’t the easiest joint to make, but it sure helps to have the best quality tools in your shop. That’s why CMT has added a new selection of Mortise Chisel bits in al the popular sizes from 1/4" to 3/4" diameter. All bits have a 3/4" shank.