I've been very happy with my Dremel.

For some reason that I've never understood, my business partner likes inexpensive tools. I buy mid to upper line tools. He buys the same tool over and over. I buy my tool once.

Recently, I convinced him that we needed a tool for a job and he reluctantly agreed and bought a (cheap, of course) tool. The tool didn't last long enough to complete the project. I stepped him up for the replacement and it sailed through that job and a few more, but he continued to eye roll, whenever I used the tool. Finally, he was struggling with a very difficult situation, using the wrong tool. He had rolled his eyes earlier that day after discovering that I had thrown the tool in the kit. I then suggested the tool, set it up and left him alone. Finally, he remarked how effective the tool had been.