It drills quickly, similar to cheap perforators from Interskol. Just before writing this comment, I compared it visually with a drill of 6 in 500 concrete, and this boshik was pleasantly surprised. I took it with a blow because the Interskol has a short wire and assumed that it would be useful, but as a result, he gives a light to this interskol, the only thing that the gearbox is heating up, drilled 30 holes with a diameter of 6 mm