Start by removing the lockset from the door, or packaging. Separate and set aside the interior half of the lockset.

Hold the lock so that the side with the keyway is facing directly away from you.

Locate the driver bar on the back of the exterior, or keyed, half of the lockset. It is the long cylindrical post that protrudes from the back of the lock and is hollow on the end.

Insert the cylinder removal tool into the end of the driver bar and turn until the tab (circled red) is in the twelve 'o clock position.