A hand tool is a device for doing a particular job that does not use a motor, but is powered solely by the person using it. Examples are almost endless, from general tools like the hammer to specific tools like calipers. A modern hammer is directly descended from ancient hand tools A tool is a device that provides a mechanical or mental advantage in accomplishing a simple machine, or a combination of them. ... A claw hammer A hammer is a tool meant to deliver blows to a target, causing it to move or deform. ... A caliper is a device used in the metalworking field of mechanical engineering, to measure the distance between two symmetrically opposing sides. ...

Virtually every type of tool can be a hand tool, although many have also been adopted as power tools, which get their motive power from engines rather than from people. A modern hammer is directly descended from ancient hand tools A tool is a device that provides a mechanical or mental advantage in accomplishing a simple machine, or a combination of them. ... A power tool is a tool with a motor. ...

External links

• Hand Tools, overview on Hand Tools at Inside Woodworking.com

• Marking Tools, Machine Marking and Hand Marking Tools from ReliantMarkingTools.co.uk