This is a great drill. I bought 7mm for drilling blanks for handles. It is perfect, very sharp, very durable and cleans the flute of sawdust very well; although some hardwoods like cocobolo will get tough if you try to drill through a 2" piece without clearing it about halfway (you can go all the way, but the flute is pretty much exactly 2" wide). Overall it's perfect for my needs and at a good price for this quality bit I will be buying more. I've only drilled about 20 pieces so far, both…