What does the opening on the outside of the diamond saw do?
The principle of the tooth structure of the saw blade and the saw blade is the same.
Because the two teeth adjacent to the front and back of the sawtooth are not on a straight line, they are shifted to the left and right respectively. The purpose of doing this is to form a gap in the cutting part of the cutting object, so that debris can be dropped without jamming the saw blade.
The reason why the outer edge of the saw blade is made open is to facilitate cutting debris removal and heat dissipation.