First off, The Dremel 3000 is well in hand and is very well suited for diffiziele work. The engine power is sufficient in my opinion. I must, however, criticize the so-called "collet-". Constantly has problems with too wide or too thin pins to which the respective tool is mounted. The solution to this problem is the additional purchase of a drill chuck (Dremel 4486). So you can - as with any drill - attach the different pen thicknesses easily on Dremel. It's a mystery to me that this company is not today in a position to this universal application chuck installed already in the basic equipment. I can put anyone Dremelkäufer warmly, mitzukaufen a drill chuck. Only for this reason I forgive for a good device only three stars.