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It worked great for about 10 minutes then self destructed
on December 21, 2014
It worked great for about 10 minutes then self destructed. A single screw that holds an eccentric weight on the motor shaft came loose. I was a odd-ball security type head that I didn't have a screwdriver for. I tried replacing the screw with a phillips head but #8 was too big and #6 too small. Must be metric threads which I didn't have on hand. It is too bad. I like all the other Matrix attachments that I have so it is a shame this one is a bad design.