page_title: Tweezers
section_title: Classification by usage
hierarchical_section_title: Tweezers / Classification by usage
caption_attribution_description: English: Plastic Tweezers, First-Aid Tool First-Aid Kit
context_page_description: Tweezers are small tools used for picking up objects too small to be easily handled with the human fingers. The tool is most likely 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, with the pincers at the others.
  People 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 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 to remove bones from fillets of fish in a process known as pin boning.
context_section_description: 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 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 jewelry
  In the textile industry as iron nubs
  in soldering
  in science, laboratory
  in aquatics at planting e.g. Aquascaping
  in watchmaker usage
  There are also other tweezers, for example, so-called optical tweezers and vacuum tweezers to the tweezers.
  The original tweezers for mechanical gripping have given rise to a number of tools with similar action or purpose but not dependent upon mechanical pressure, including
  Optical tweezers use light to manipulate microscopic objects as small as a single atom. The momentum transfer from a focused laser beam is able to trap small particles. In the biological sciences, these instruments have been used to apply forces in the pico Newton range and to measure displacements in the nm range of objects ranging in size from 10 nm to over 100 mm.
  Magnetic tweezers use magnetic forces to manipulate single molecules (such as DNA) via paramagnetic interactions.  In practice it is an array of magnetic traps designed for manipulating individual biomolecules and measuring the ultra-small forces that affect their behavior.
  Electric tweezers deliver an electrical signal through the tip, intended for depilation by damaging hair roots to prevent new hair from growing from the same root.
  Vacuum tweezers use differences in atmospheric pressure to grasp items from 100 micrometres in size up to parts weighing several pounds.  Special vacuum tweezer tips are manufactured to handle a wide variety of items such as surface-mount electronics, optics, biological material, stamps and coins.  They may be used to handle parts that are so small that conventional mechanical tweezers may cause parts to be damaged or dropped and lost.
  Molecular tweezers are noncyclic host molecules that have two arms capable of binding guests molecules through non-covalent bonding.
  Hot, or soldering, tweezers combine the squeezing action of mechanical tweezers with heating, to grip small surface-mount electronic devices while simultaneously heating them, for soldering or desoldering.
  Tweezer probes are a pair of electrical test probes fixed to a tweezer mechanism to measure voltages or other electronic circuit parameters between closely spaced pins.
  Tweezers integrated with an electronic measuring device for evaluation of electrical parameters of small-size electronic components.
  Carbon nano-tweezers have been fabricated by deposition of MWNT bundles on isolated electrodes deposited on tempered glass micropipettes. Those nanotube bundles can be mechanically manipulated by electricity and can be used to manipulate and transfer micro- and nano-structures. The nanotube bundles used for tweezers are about 50 nm in diameter and 2 µm in lengths. Under electric bias, two close sets of bundles are attracted and can be used as nanoscale tweezers.
  Other uses of the same principle are named tweezers; although such terms are not necessarily widely used their meaning is clear to people in the relevant field. E.g., Raman tweezers, which combine Raman spectroscopy with optical tweezers.
caption: Plastic tweezers used in first aid kit
exif: {"Image ImageDescription": "OLYMPUS DIGITAL CAMERA", "Image Make": "OLYMPUS IMAGING CORP.", "Image Model": "C180,D435", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Version 1.0", "Image DateTime": "0000:00:00 00:00:00", "Image YCbCrPositioning": "Co-sited", "Image ExifOffset": "996", "Image PrintIM": "[80, 114, 105, 110, 116, 73, 77, 0, 48, 51, 48, 48, 0, 0, 37, 0, 1, 0, 18, 0, ... ]", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "4084", "Thumbnail JPEGInterchangeFormatLength": "3067", "EXIF ExposureTime": "1/30", "EXIF FNumber": "14/5", "EXIF ExposureProgram": "Program Creative", "EXIF ISOSpeedRatings": "50", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "0000:00:00 00:00:00", "EXIF DateTimeDigitized": "0000:00:00 00:00:00", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "2", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "3", "EXIF MeteringMode": "Pattern", "EXIF LightSource": "Unknown", "EXIF Flash": "Flash fired, auto mode, red-eye reduction mode", "EXIF FocalLength": "61/10", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2592", "EXIF ExifImageLength": "1944", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "EXIF InteroperabilityOffset": "1714", "EXIF FileSource": "Digital Camera", "EXIF SceneType": "Directly Photographed", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "79/20", "EXIF SceneCaptureType": "Portrait", "EXIF GainControl": "None", "EXIF Contrast": "Normal", "EXIF Saturation": "Normal", "EXIF Sharpness": "Normal"}