Instructions Before use, make sure that the saw blade is not damaged. If it is damaged, it is strictly forbidden to use. When assembling, the motor shaft is matched with the center of the saw blade, and the error must be less than 0.1mm. Note that the direction of the arrow marked on the saw blade is the same as the direction of rotation of the tool used. When cutting, please do not apply side pressure and curve cutting. The feed should be smooth and avoid the impact of the blade on the workpiece to avoid danger. When dry cutting, do not cut continuously for a long time, so as not to affect the service life and cutting effect of the saw blade; wet film cutting should be cooled with water to prevent leakage. Experts suggest that after the saw blade is installed, it should be idling for a few minutes to confirm that there is no sway or beating, and then try cutting a few knives on the grinding wheel or refractory brick, and then the normal work is best. If the blade is not sharp enough, use a silicon carbide grindstone to get the edge.