What should be paid attention to during the use:
1. Keep the contact temperature between the grinding head and the stone normal. Excessive temperature can lead to premature damage to the grinding head.
2. Always check the normal use of the screws holding the polishing head. Otherwise it is easy to cause flying out
3. It is necessary to cut the stone that is not too hard. The stone that is too hard will also reduce the service life of the polishing head.