How do you properly drill countersink holes?

To properly drill countersink holes, follow these steps:

1. Choose the correct size drill bit for the countersink hole.
2. Mark the center of the hole on the material.
3. Drill a pilot hole to guide the countersink bit.
4. Attach the countersink bit to the drill and adjust the depth.
5. Slowly drill the countersink hole at a 90-degree angle to the material.
6. Check the depth and adjust if needed.