The reason of sawing blade is that the pressure is too big, the angle of sawing is too big, the proper measures and methods are not taken when sawing pipe material, thin plate material and the Sawtooth is thick, and the workpiece is not suitable.
The reason for the broken saw blade is the following:
(1) The saw blade is too tight or loose.
(2) The workpiece is not clamped correctly, and the saw is too far from the clamp, resulting in shaking or loosening.
(3) The saw blade was broken when the saw seam was crooked and forced to be corrected.

(4) A sudden increase in pressure when the force is too strong or when the saw is cut.
(5) The new saw blade was stuck in the crack of the old saw and broke. Generally to change the direction of sawing again, if only from the old saws, should slow down the speed and pressure, and be very careful.
(6) When the workpiece is sawn, it is not mastered in time, so that the handsaw collides with the table vise and breaks the saw blade.