I had one of those Austincraft jobs. There is another more recent economy tool box model that is just a 1/4" piece of drill rod that is pointed on the ends. You hold it between your fingers. Whatever you do, don't waste your money on the Tower Magnetic balancer. The magnetism is not enough to hold the arbor except on the small props. I have a couple of the High Point Balancers. They work real nice. They will do the big props and weed whacker flywheels too.

Enjoy,

Jim