Gearbox gone. Recognized as a warranty case, but this is half the trouble. Here is the warranty repair itself is a disaster! We agreed on a guarantee for a week, now we have to wait 10 days for a new gearbox, and this is Hong Kong, not the most remote province, and then the work itself. In general, the tool fell out of work for at least 3 weeks. All this time, apparently, you have to twist with your finger .