Fyi - this is SnapOn Part A57Q "The Bushing Inserter/Remover Set":
http://buy1.snapon.com/catalog/item.asp?P65=&tool=all&item_ID=635932&group_ID=675647&store=snapon-store&dir=catalog
It's the same concept as the Schley SP11100 Bushing Replacement Tool, and here's a demo of how that works...