Terms of the Trade: What Is a Screwdriver? Terms of the Trade: What Is a Screwdriver?

Screwdrivers are essential items in any DIYer's toolbox. They can be either manual or powered and come in a wide variety of sizes based on the size of screws. By turning the handle, the tip that is inserted into the screw head rotates to either remove or tighten the screw. Screwdrivers are classified by the shape of the tip, the most common being Phillips-head (pointed) and flat-head (flat).

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