What are you chasing on the perforator? Somehow I could not withstand the continued second day of drilling. And obviously not the wall is broken down - there by the nature of the work is heard. Just a dumb monotonous tarahtenya in one point. I went to question. The neighbor hangs the kitchen cabinets. A striking stroke. In two days, I broke four holes. In the panel wall with a filler of granite sludge. He went and brought a perforator. Work for 15 minutes with two cigarettes. The real evil is shock drills.