Bought this set after reading reviews about other bits problems. Not sharp out of the box, round shank instead of hex, etc. I kind of winced at the price, but experience has thought me that you usually get what you pay for. I am very pleased to say they are going to be a good investment. I bored 216 holes, 2 1/8th, in birch veneer plywood Today. The last hole cut just as well as the first. Defiantly would buy this item again.