Drilling is a process used to create holes in various materials, such as wood, metal, or rock. It involves using a tool called a drill, which rotates a sharp bit to cut through the material. Drilling is essential in many industries, including construction, manufacturing, and mining, as it allows for the installation of screws, bolts, and other fasteners. In addition to its practical applications, drilling is also used in geology to explore underground resources like oil and natural gas. By drilling deep into the earth, scientists can gather samples and data, helping them understand the planet's structure and locate valuable resources.