I=1/8" D=1-7/8" F=8mm CMT three wing carbide tipped Slot Cutters feature anti-kickback three wing blade design and CMT trademark orange PTFE Industrial Coating. This Slut Cutter blade has a cutting height of 1/8" (3.2 mm) and a cutting diameter of 1-7/8". The bore diameter is 8 mm and fits either 1/4" or 1/2" shanks.