Ruuvauskärkiä

Ruuvauskärkiä refers to interchangeable bits used with a screwdriver or a powered screwdriver to drive or remove screws. These tips are designed to fit specific screw head types and sizes, ensuring proper engagement and preventing damage to both the screw and the tool. The most common types of screw heads include slotted, Phillips, Torx, Pozidriv, and Hex. Each ruuvauskärki has a corresponding tip shape that matches these head profiles.

The material of ruuvauskärkiä is crucial for durability and performance. High-quality bits are typically made from hardened steel, often alloys like S2 steel or chrome-vanadium steel, which offer excellent strength and resistance to wear and breakage. Surface treatments, such as titanium nitride (TiN) coatings, can further enhance hardness and reduce friction.

Ruuvauskärkiä come in various lengths and drive sizes. The drive size determines how the bit connects to the screwdriver handle or chuck. Common drive sizes include 1/4 inch hex, which is widely used in power tools and manual screwdrivers. The length of the bit can affect reach into tight spaces or provide leverage.

The selection of the correct ruuvauskärki is essential for efficient and safe work. Using the wrong type or size of bit can strip the screw head, damage the tool, or cause injury. Many tool sets include a variety of ruuvauskärkiä to accommodate a wide range of fastening tasks.