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What is a tool?
What are types of tools?

A modern toolbox
What is a tool?
An item or implement used for a specific purpose. A tool can be a physical object such as mechanical tools including saws and hammers or a technical object such as a web authoring tool or software program. Furthermore, a concept can also be considered a tool.

What are types of tools?
Aircraft Tools
Auto Tools (car or truck)
Electrical Tools
Engineering ToolBox
List of timber framing tools
Masonry Tools
Plumbing Tools
Software tool classification by function
Types of tools
What Are the Hazards of Hand Tools?

What Are the Dangers of Power Tools?

Operating Controls and Switches
Portable Abrasive Wheel Tools
Pneumatic Tools
Liquid Fuel Tools
Powder-Actuated Tools
Hydraulic Power Tools
One can classify tools according to their basic functions:

Cutting tools, such as the knife, scythe or sickle, are wedge-shaped implements that produce a shearing force along a narrow face. Ideally, the edge of the tool needs to be harder than the material being cut or else the blade will become dulled with repeated use. But even resilient tools will require periodic sharpening, which is the process of removing deformation wear from the edge. Other examples of cutting tools include gouges and drill bits.

Moving tools move large and tiny items. Most are levers which give the user a mechanical advantage. For example, concentrating-force tools: the hammer moves a nail, the maul moves a stake, or a whip moves flesh on a horse. These operate by applying physical compression to a surface. In the case of the screwdriver, the force is rotational and called torque. Writing implements deliver a fluid to a surface via compression to activate the ink cartridge. Also grabbing and twisting nuts and bolts with pliers, a glove, a wrench, etc. All these tools move items by some kind of force. Also trucks, rockets and airplanes move larger items and particle accelerators move very small items. Tools that enact chemical changes, including temperature and ignition, such as lighters and blowtorches.

Guiding, measuring and perception tools include the ruler, glasses, set square, sensors, straightedge, theodolite, microscope, monitor, clock, phone, printer

Shaping tools, such as molds, jigs, trowels.

Fastening tools, such as welders, rivet guns, nail guns, or glue guns.

Information and data manipulation tools, such as computers, middleware, IDE, spreadsheets