Only buy for light projects. I would be careful with that too. Consider this simple cutting/grinding. Do not use this for significant surface removal/smoothing projects. First, I'm a fan of artisans and not loyal to any brand. I just prefer quality tools that last a long time. I bought this to remove a thin layer from the bathroom floor and paired it with a sanding disc with a suitably sized diamond cup. side, and the whole block died and caught fire. I have not overworked or overheated this unit. In order to keep up with the project plan, I had to buy a replacement locally and return it. I would not buy this model again. I am rating 2 instead of 1 because I may have been sent a defective model and others may actually be durable.