They are really impressive considering how much I paid for them. I bought them to cut half inch Baltic plywood. I expect they'll burn out pretty quickly given how cheap they are, but I was able to go through a few with a club before heading out to change. There were no breakouts on the top and bottom services so they worked great. I didn't push them too hard but it could be related to the performance of the router and not the bit. I will buy again.
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