screwdriver

screwdriver
/skrooh"druy'veuhr/, n.
1. a hand tool for turning a screw, consisting of a handle attached to a long, narrow shank, usually of metal, which tapers and flattens out to a tip that fits into the slotted head of a screw.
2. a mixed drink made with vodka and orange juice.
[1770-80; SCREW + DRIVER]

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▪ tool
 tool, usually hand-operated, for turning screws with slotted heads. For screws with one straight diametral slot cut across the head, standard screwdrivers with flat blade tips and in a variety of sizes are used. Special screws with cross-shaped slots in their heads require a special screwdriver with a blade tip that fits the slots. The most common special screw is the Phillips head (Phillips Screw) as shown in the Figure—>.

      The screwdriver shank is made of tough steel, and the tip is hardened to minimize wear. The handle is made of wood, metal, or plastic.

      If a screw cannot be reached with a straight-shank screwdriver, an offset screwdriver is used; this tool has no handle but has a shank with a right-angle bend at both ends. One blade tip is in line with the shank, and the other is at right angles to the shank.

      Screwdriver bits can be clamped in a brace, an automatic handle that rotates on being pushed toward the screwhead, or a gear reduction drive in a power drill.

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Universalium. 2010.

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  • screwdriver — UK [ˈskruːˌdraɪvə(r)] / US [ˈskruˌdraɪvər] noun [countable] Word forms screwdriver : singular screwdriver plural screwdrivers 1) a tool used for turning screws 2) an alcoholic drink made from vodka and orange juice …   English dictionary

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