Patent ID: 7559726

Claim:
A plug ejection system comprising: a drill and a drill bit coupled to said drill, said drill rotating said drill bit when said drill is turned on; a hole saw being mounted on said drill bit, said hole saw including a base wall and a perimeter wall being attached to and extending away from said base wall, said perimeter wall having an terminal edge defining an opening into said hole saw, said terminal edge comprising saw teeth for cutting into material and removing a plug from said material; a plate having a first side, a second side and a peripheral edge, said plate having an aperture therein extending into said first side and outwardly of second side, said drill bit extending through said aperture, said second side facing said opening of said hole saw; and a pair of biasing members being mounted on said plate and biasing said plug outwardly of said hole saw, each of said biasing members comprising: a post being attached to said plate and having a head extending toward said opening of said hole saw; and a spring being positioned on said post, said spring biasing said plug away from said plate.