Firkantnøkler

Firkantnøkler, also known as square keys or hex keys, are specialized tools used for tightening and loosening bolts, nuts, and other fasteners with square or hexagonal heads. They are commonly used in automotive, mechanical, and industrial applications where access to the fastener is limited or where a standard wrench cannot be used. Firkantnøkler come in various sizes, typically measured in millimeters or inches, to accommodate different fastener sizes. They are designed with a square or hexagonal shape that fits snugly into the corresponding shape of the fastener head, providing a secure grip and preventing slippage. These tools are often made of hardened steel to ensure durability and resistance to wear and tear. Firkantnøkler are essential for tasks that require precise and secure fastening, making them a valuable addition to any toolkit.