These power tools differ in power. Depending on the tasks to be solved, it is worth acquiring a tool of suitable power. Bulgarians of well-known manufacturers should be purchased, which will become a certain guarantee of their quality work. Even with test inclusion in the store, you can say something about the quality of the product. The stopping of the unit should be smooth, there should not be the infrequent individual knocks. A good product can be operated for many years.