How do you properly counter sink a screw for a professional and secure finish?

To properly countersink a screw for a professional and secure finish, first drill a pilot hole slightly smaller than the screw diameter. Then use a countersink bit to create a conical-shaped hole at the top of the pilot hole. Place the screw in the countersunk hole and drive it in until it sits flush with the surface. This technique ensures a clean and secure finish for your project.