After getting a new band saw, I needed a way to balance the two wheels. Being a small amount off-balance will make the table vibrate, making it hard to complete precise cuts. One way of balancing the wheels without having to take them off, uses a dial indicator. Dial indicators can be used to show small amounts of change in distance. The local hardware store had a set for $79. Thinking that was too much, I checked Harbor Freight….there was the same set for $29. Maybe not the best quality, but it would work perfect for what I am doing.