One Hole egg blower now makes blowing eggs a fun, simple and clean process. (1) Drill hole in eggshell. Enlarge hole to 2mm or more using T1 Mounted Grindstone. The larger the hole, the more quickly your egg will empty. (2) Insert tip of egg blower into hole. (3) Blow through egg blower, forcing contents of egg down through hole. Can be connected to a small air pump, such as a pump for a fish tank.