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Repair any DRILL with this impressive TRICK you are interested!! In this video tutorial of Easy projects with MOTORS and other electric machines we are going to repair an electric drill that throws a lot of sparks, before starting with the video remember that we are going to work with the mains voltage in this case for Spain 220 / 230v and as you well know it is quite dangerous to take all the protection measures before handling an electric drill, in this case this drill is from the Casals brand and the first thing we are going to do is do maintenance on the drill and disassemble the motor to see what condition it is in, after that we are going to clean the collector since it seems that it has a lot of carbon and we are also going to see the condition of the brushes, in this case the type of brushes that this drill has I cannot find them in the same size, but with a few simple techniques I am going to adapt other brushes of another size, I am going to adapt them to the size of the drill brush, after doing many tests, cleaning the collector, placing the new brushes, putting new grease and some other things the drill is successfully repaired and we can use it without problem, if you like the video don't forget to leave your like thanks.