fúrófej

Fúrófej, commonly translated as drill bit, is a cutting tool used in conjunction with a drill to create holes in a variety of materials. Drill bits come in a vast array of shapes, sizes, and material compositions, each designed for specific applications. The primary function of a drill bit is to remove material by rotating at high speeds, shaving or chipping away at the workpiece.

The most basic type of drill bit is the twist drill bit, characterized by its helical grooves. These grooves serve to guide the material away from the cutting edges and facilitate chip evacuation. Twist drill bits are widely used for drilling in wood, metal, and plastic. Other common types include spade bits, which are flat and used for drilling larger diameter holes in wood, and masonry bits, designed with hardened tips to penetrate concrete, brick, and stone.

The material from which a drill bit is made is crucial to its performance and durability. High-speed steel (HSS) is a common and versatile material, offering good hardness and heat resistance. For tougher materials or applications requiring extreme durability, bits made from carbide or diamond-tipped materials are employed. The cutting edges of a drill bit are precisely ground to achieve optimal cutting action and chip formation. Proper selection of a drill bit based on the material being drilled and the desired hole size is essential for efficient and clean drilling.