The grinder is super. the first time I turned it on, I saw a difference compared to other manufacturers. it works smoothly without vibration. the move is quiet, there is no feeling as if it is running out of gear. the speed is stable. the wire is soft. but for half a day of work I didn’t even feel tired in my hand. It’s a pleasure to cut. My hands don’t vibrate when working like with the others. I didn’t feel the heating of the machine during long-term work. I recommend to everyone.