Screwdriver
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A screwdriver is a tool, manual or powered, used for turning screws.
A slotted or "flat-head" screwdriver
Slotted screws
Robertson screw
Phillips screw head
Screwdriver bit
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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
Screwdriver
…and is particularly useful when handling small screws or working in confined spaces. Many screwdriver designs employ interchangeable tips, known as screwdriver bits, analogous to drill bits. This allows a single handle to be used with multiple bits of varying profiles and dimensions, enhancing the tool’s versatility…
A selection of common screwdriver bits, including Phillips, Pozidriv, Torx, slotted, and hex drive types.
Phillips bit (left) in bit holder (center) with magnetic 1/4-inch bit shank (right).