Carbide Tipped Mortice Cutters Compared to the previous design, these improved carbidetipped mortice cutters' class='desclinks'>cutters increase the cutting speed by upto 50% and keep their sharpness longer. The simplified, screw-on ‘anti-lock’ design enables the cutter to be released quickly using the spanner provided. Twelve cutters' class='desclinks'>cutters are available packed in tough blue boxes.