- No mandrels is provided usable. They are made of an alloy so tender that when we want to screw a top accessory or you do not shake enough and the accessory turns mad or is tightened too much and we destroy the thread and the mandrel is unusable.
- At the fifth use, the lock button which serves to prevent the shaft from rotating when you want to change the tool jumped, so that the axis may crash unexpectedly in operation and damage the engine.
Without reaching the quality of a dremel, for that price I expected a tool if only qu'utilisable. It is unbearable even a product of a poor quality is also sold on Amazon.
