This is my homemade bearing cup press. It works similar to the Park Tool HHP-3 to install the bearing cups into the head tube of a bike frame. It cost less than $8 to make. So relatively cheap to build. It was made from a 12 inch piece of 1/2″ threaded rod, 4-6 fender washers, 2 nylon washers, 2 flat washers and 2 flange nuts. I also demonstrate how to use the tool.