After a rotary hammer from Bosch at the hardware store for 30, - had borrowed the day, I bought this rotary hammer. I had thought that I would have more work with the Einhell, but that was not the case. I had him but so far only three days in use. Use was tearing walls, exposing old water pipes and cut off flow. For small holes in the wall of this unit is oversized. Conclusion: Diser hammer can occasionally with a hammer the price range around 600, - measure.