What is the purpose of drill bits?

Drill bits are specifically designed to create holes in a variety of materials, such as wood, metal, plastic, and masonry. They function by rotating at high speeds while applying pressure, which allows them to penetrate the material and remove material to form a cylindrical hole. The design and shape of drill bits can vary widely depending on the intended application and the type of material being drilled.

While enlarging existing holes, cutting metal sheets, and polishing surfaces involve different processes and tools, the fundamental purpose of a drill bit is to initiate and create holes. Thus, identifying the primary function of drill bits as creating holes directly aligns with their design and application in various mechanical and construction tasks.