Tool

A tool is a device that provides a mechanical or mental advantage in accomplishing a task.

Functions of tools

Many tools or groups of tools serve to perform one or more of a set of basic operations, such as:

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• Cutting (knife, scythe, sickle, ...)
• Concentrating force (hammer, maul, screwdriver, whip, writing implements, ...)
• Guiding (set square, algorithm, straight edge, tradition, ...)
• Protecting
• Seizing and holding (pliers, glove, wrench, ...)