I have had this drill for 6 months, I use it mainly for 8/10/12mm through 9" cavity walls. Also concrete (mainly stone) type walls. If any one remembers early 1900's blue centre engineering bricks (very hard) was a doddle, even with a cheap set of masonry chisels from Aldi through the same bricks it made a hot knife through butter seem like hard work. Expensive but worth every penny. Lue Lisää Translate to suomi