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Impact drill（3）maintenance(1) A professional electrician should regularly replace the carbon brush of the impact drill and check the spring pressure.(2) Ensure the overall integrity of the percussion drill body, cleanliness and removal of dirt, and ensure smooth rotation of the percussion drill.(3) Read More
Impact drill（2）The impact drill is designed with double insulation, which is safe and reliable to operate. It does not need to be grounded when using it. It is only necessary to use a single-phase two-pole plug. You can use it without wearing insulating gloves or insulating shoes. In order to make t Read More
Impact drill（1）The impact drill relies on rotation and impact to work. A single impact is very slight, but the impact frequency of more than 40,000 per minute can produce a continuous force. Can be used for natural stone or concrete. When the impact drill is working, there is an adjustment knob at t Read More