I have to say I was not impressed with your drills, I thought from our conversation your drills were all singing all dancing, after having bought what I expected to be quality drills from another supplier, which turned out to be total rubbish, I found your internet site making claims of better quality drills, I also spoke to one of your employees who assured me that your drills would deal with concrete without any trouble, on the strength of that I bought a selection of your drills, one for masonry and 4 for concrete, I put one of the smallest drills in to start my hole in the concrete and it promptly blunted, and had deep scores on the shaft from the contact with the concrete, drill finished, I found an old drill of my own! made the hole tried to open it up with your drills, well that was hard work, destroyed another of your drills, I then went through all my own tools and found two old drills bought some years ago and finished the job with them. So what do I think of your drills, they are overpriced and total rubbish.