Skruetrækker

Skruetrækker is the Danish word for screwdriver. A screwdriver is a tool, manual or powered, used for turning screws and their corresponding fasteners. The basic functional form of a screwdriver consists of a handle and a shaft, ending in a tip that engages with a screw head. The shaft is typically made of steel and the handle is usually made of plastic or wood.

Screwdrivers come in a wide variety of types, distinguished by their tips, which are designed to fit specific types of screw heads. The most common types include flat-head (or slotted), Phillips, Pozidriv, Torx, and Robertson (square). Each type has a unique shape that mates with the corresponding recess in the screw head, allowing for efficient torque transfer. The size of the screwdriver must also match the size of the screw.

The handle of a screwdriver is designed for comfortable grip and to provide leverage. The length of the shaft can vary, with longer shafts allowing access to screws in recessed or hard-to-reach places. Powered screwdrivers, such as cordless drills with screwdriver bits, use a motor to rotate the shaft, significantly increasing speed and reducing user effort, especially for repetitive tasks or when driving many screws. Screwdrivers are essential tools in many trades, including carpentry, electrical work, plumbing, and general maintenance, as well as in households for everyday repairs and assembly.