With the development of the industry, more and more products need to be cut, and the use of the aluminum flat cutting disc makes the semi-finished product become a mature product step by step. What problems should the cutting piece need to pay attention to when purchasing? 1. Hold the stone cutting machine by hand, turn on the power supply, frequently operate the switch by hand, make the tool start frequently, observe whether the on/off function of the stone cutting machine switch is reliable. Also, observe whether the TV and fluorescent lamp on the spot are abnormal. To confirm that the tool is equipped with a valid radio interference suppressor 2. Check the nameplate and manual of the stone cutting machine. The nameplate parameters should be consistent with the 3C certificate. The manufacturer's and manufacturer's detailed address and contact information should be included in the manual. The nameplate or certificate should have the serial number of the product traceable. 3. The stone cutting machine is energized for one minute. When the hand is held by hand, the hand should not feel any abnormal vibration. Observe the reversing spark. The reversing spark should not exceed 3/2, generally from the tool. Look inside the air inlet, there should be no obvious arc on the surface of the commutator. When running, there should be no abnormal noise. 4. Observe the outer packaging of the stone cutting machine. The outer packaging should have a clear pattern and no damage. Open the packaging box and observe the appearance of the stone cutting machine. The color should be uniform. There should be no obvious shadows and dents on the surface of the plastic parts. There should be no scratches or Bumping marks, assembly misalignment between shell parts ≤0.5mm, aluminum castings coating is smooth and beautiful without defects, the surface of the whole machine should be free of oil and stains. When held by hand, feel good hand feel, the handle of the switch should be flat. Cable The length of the line should generally be no less than 2 meters. Choosing the right cutting piece can not only improve the cutting efficiency but also reduce the dust on the cutting site. The summary of the flat cutting disc on sale of the above grinding wheel hopes to help everyone.