The drill bit, also known as a drill, is the most commonly used cutting tool in mechanical processing and manual operations. Its core function is to create round holes on the surfaces of various workpieces, making it the essential tool for drilling tasks. It is widely applied across industries such as hardware, mold making, woodworking, electronics, and decoration. The primary function of the drill bit is hole drilling, enabling the creation of through holes or blind holes in materials like metal, wood, plastic, and PCB boards, meeting fundamental processing needs such as assembly, fastening, and wiring.

    In addition to basic drilling, drill bits also possess various auxiliary processing functions. They can perform reaming operations on pre-formed small holes to adjust the diameter to standard dimensions. Some specialized drill bits can complete chamfering, countersinking, and deburring tasks, ensuring that screws, bolts, and other fasteners fit seamlessly during installation, thereby improving assembly accuracy and aesthetics. Meanwhile, center drill bits can create positioning holes in advance to prevent drill bit deviation during subsequent drilling, effectively ensuring precise hole-making. Drill bits of different materials and specifications are suitable for various hardness levels of materials, catering to both fine precision machining and conventional rough processing scenarios.