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Hand jig saw stops cutting - makes whirring noise - then restarts

I am cutting 3/16 perforated aluminum sheets, free hand lines. I have two older jig saws. Both worked fine for their first 10 feet, now both make this whirring noise and will not proceed until the whirring stops when I back off on the cutting - then they (each) will work for another 1/4'' of cutting.

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Jig saws are not made to cut through aluiminum espescially that size. That is really thick and it sounds like you have worn out the motor trying to cut it. If the saws are hot. Let them cool down then proceed but like I metioned before you are putting a lot of stress on something not made to cut aluminum even with a metal cutting blade

Posted on May 21, 2009

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