Screwdriver bit

A screwdriver bit is a detachable tip or toolhead used to drive screws, typically with a hand-operated screwdriver, drill, or impact driver. Interchangeable bits allow a single tool to work with many screw types and sizes. Screwdriver bits are among the most common accessories in hand and power tool systems and are used across construction, electronics, automotive repair, and woodworking. The concept of interchangeable bits has existed since at least the early 20th century.

A selection of common screwdriver bits, including Phillips, Pozidriv, Torx, slotted, and hex drive types.
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