Cutting out the Wheels

I used a 1-3/4" hole saw to cut the wheels out of a 1-1/4" thick piece of basswood. The hole saw wasn't long enough to cut all the way thought the piece so about halfway though, I flipped the piece over to complete the hole. The basswood really gummed up the hole saw, causing it to burn the wood. I found that if I brought the hole saw up while it was still running and hit it with a brass brush, it would knock off all the gummed up wood, and the saw would cut cleanly for a little while again.