As a pipe welder I bought this die grinder to help me prepare the pipe from the inside for TIG welding with the wheels fold down. I wouldn't say this grinder has tremendous power, but enough to get the job done. I'm glad I chose the paddle version of this grinder, it's much more comfortable to use, especially with larger hands. The tools appear to have excellent build quality and should last a long time if not abused by too much stress (i.e. let the RPMs do the work for you rather than pushingβ¦