1. Safety check before use

Check whether the drill bit is crack or damage. If there is any damage, you need to replace the drill;

Check whether the power cord is damaged. If the damage is found, you need to use the insulating tape to be wrapped to prevent electric shock. The condition is best to replace the new power cord;

Check whether the flashlight drill switch is in a shutdown state to prevent the sudden rotation of the connection power of the power supply and the sudden rotation of the electric drill can easily lead to accidental damage;

2. Safety check after opening

After the electric diamond is turned on, it can be carried out for half a minute to check whether the transmission part is flexible, whether there are abnormal noise, the drill bit, screws, etc.

You need to observe the rotation direction and the direction of the drill head consistent;

3. Safety precautions in use

When punching, please hold the electric drill tightly with both hands, and try not to operate one hand as much as possible, so as not to cause accidental damage due to the recoil or rotation force;

Do not be too strong for the pressure when punching, prevent the anti -drill bit from being interrupted or the silk attack flying out accidentally;

During the use process, make sure that all fingers are near the drill, and then turn on the electric drill to start working to prevent mistakes from hurting the fingers;

Clean up drill bit waste dandruff and drill bites, etc., must be carried out when the power supply is disconnected;

During the use process, if the spark is large and the electric drill is overheated, please stop using it immediately to check the pressure of the dirt, replace the wear of wear, adjust the pressure of the springs of the electric brush;

4. Precautions for safety after use

After completing the punching work, turn off the power supply first, wait for the drill to stop rotating, and then remove the electric drill;

When not in use, unplug the power plug in time, pull off the drill bit to prevent accidental interruption, and put the electric diamonds and other components back to the device box, store in a dry and clean environment.