so far not so good The first time I used this tool with the nibbler attachment I had a problem with the metal shavings galding to the punch.I have to use tapping compound to keep this from happening. I build metal building and use this tool on rather light,26 and 29 gage sheet metal.I am going to contact the company and see if they have any suggestions.
Good Quality at a resonable price I would highly recommend this tool for the do-it-yourselfer who wants a professional quality tool to do sheet metal cutting on a not so regular basis. It is made to much the same standards as Ketts commercial products but at half the cost.