If the voltage drops, then you need a stabilizer. since sawing at 200 volts in the network is no longer comfortable. and at 180 it does not saw at all, but crawls with a disk over the workpiece. but again, this is a problem with all power tools. who said heavy - buy a grinder for a disk of 180, 150, or even 125 mm. and don't touch a professional tool! I have the previous whittled 2 sets of brushes. (original for 500) for 5 years of continuous work. I bought it as a spare, but the old one is not going to break. 5 years old, no backlashes were found, it doesn’t spark, it turns perfectly. in the photo the old grinder de volt she is 5 years old) new in the box in the photo. such as on the avatar in the "store"
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