Tweezers
Tweezers are small tools used for picking up objects too small to be easily handled with the human hands. They are probably derived from tongs, pincers, or scissors-like pliers used to grab or hold hot objects since the dawn of recorded history. In a scientific or medical context they are normally referred to as forceps.
Tweezers make use of two third-class levers connected at one fixed end (the fulcrum point of each lever), with the pincers at the others.
Women commonly use tweezers mainly for tasks such as plucking hair from the face or eyebrows, often using the term eyebrow tweezers. Other common uses for tweezers are as a tool to manipulate small objects, including for example small, particularly surface-mount, electronic parts, and small mechanical parts for models and precision mechanisms. Stamp collectors use tweezers (stamp tongs) to handle postage stamps which, while large enough to pick up by hand, could be damaged by handling; the jaws of stamp tongs are smooth. One example of a specialised use is picking out flakes of gold in gold panning. Tweezers are also used in kitchens for food presentation[1] to remove bones from fillets of fish in a process known as pin boning.
Types
Tweezers come in a variety of tip shapes and sizes. Blunt tip tweezers have a rounded end which can be used when a pointed object may get entangled, when manipulating cotton swabs, for example. Flat tip tweezers, have an angled tip which may be used for removing splinters. Some tweezers have a long needle-like tip which may be useful for reaching into small crevices. Triangular tip tweezers have larger, wider tips useful for gripping larger objects. Tweezers with curved tips also exist, sometimes called bent forceps. Microtweezers have an extremely small, pointed tip used for manipulating tiny electronic components and the like.
There are two common forms of construction for tweezers: two fused, angled pieces of metal, or one piece of metal bent in half. The bent tweezer is cheaper to manufacture, but gives weaker grip. The fused tweezer is more expensive, but allows for a stronger grip. The width between the tips of the tweezers when no force is applied also affects how powerful the grip is.
Applications
in lead type
in dealing with stamps (see Philately)
in dealing with smaller coins (see Numismatics), to protect the coins these are wrapped at the tips with plastic
in the electronics
for hair removal (eyebrow tweezers)
in semiconductor technology in the form of wafer tweezers
in cosmetics
in medicine (Forceps and Tissue Forceps)
in the household
in jewelery
In the textile industry as iron nubs
in soldering
in science, laboratory
in aquatics at planting z. B. Aquascaping
in watchmaker usage
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