I was disappointed in this set. I haven't found the dies to work all that well. I have more success using a regular die set. I've tried using the files also, but no real luck. Doesn't seem like they are that sharp. I have not had opportunity to try the taps, but I suspect I'd be better off with conventional cutting taps. Also the metric thread pitches don't seem to match the metric threads I've needed to chase. Maybe I'm just unlucky.