Before starting a new project, balance your CMT blade in your table saw with the CMT calibration & sanding disk. Mount your calibration blade into your saw and line it up with a square for accuracy. Remove the calibration disk and mount your saw blade for true and precise cuts, or use the calibration & balance disk as a sander by attaching self-stick sandpaper and then reinstalling the disk to your table saw. Size:10″ Bore:5/8″ Plate Thickness:.125″