Things You'll Need
Adding on a new room? Installing new light fixtures? You'll need to use a drill for these and many other home improvement projects. Most drills accommodate dozens of different drill bits. Drill bits can hold screws or create lead holes in the wall for future screws.
Select the appropriate drill bit for your project. If you are drilling a lead hole into a wall or board, make sure it is the same size as the screw, and if inserting a screw, make sure it is the correct bit to hold the screw.
Press down on the manual unlock button. This is typically next to the head of the drill. Doing so allows you to insert and remove drill bits. For older drill models, a drill key is provided. This is a small device that you insert into the head of the drill and turn counter-clockwise to unlock the drill head.
Insert the bit into the head of the drill.
Release the drill lock button and the bit is now securely fastened into the drill. To use the drill key, lock the bit into the drill by turning clockwise.