A tool is a device that most commonly provides a mechanical advantage or ease of working in accomplishing a physical task.

Dores-Hand tools

Some hand tools

Basic toolsEdit

The most basic tools are simple machines. For example, a crowbar simply functions as a lever. The further out from the pivot point, the more force is transmitted along the lever.

Most tools can also serve as weapons [1], such as the hammer and the knife [2]. Similarly, people can use weapons, such as explosives [3], as tools.

Varieties of toolsEdit

  • Devices often typify newly invented or specific-purpose tools.
  • Instruments are concrete or abstract tools, especially if they are refined.
  • Machines can function as ordered systems of tools or as super-tools.

Physical toolsEdit

Cognitive toolsEdit

In computing, the term tools can also apply to software programs that assist people doing work on computers, such as Computer Aided Software Engineering tools, Lint programming tool, software or web-based collaborative tools, software development tools, programming tools.

Basic functions of toolsEdit

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

  • 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, ...)


See [8]

See alsoEdit

Hand tool

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