Q. Which hammer machine is good for non-professionals?

Answer

However an ordinary hammer drill is not the same as a ROTARY hammer drill. The low hammering pressure of this machine allows for a greater impact force with less vibration. Due to the presence of a toggle switch these are immediately distinguishable. In addition to turning the bit of this drill also receives a percussive blow as it spins. Thus the bit is both twisted and pounded on as if it were a nail. If need to bore through stone this is the instrument for the job. The impact shatters the stone or concrete and the spinning carries the shards away while scraping the loose debris away as well. As opposed to a drill which only revolves this tool more closely resembles a rotary hammer the primary function of which is to deliver blows.