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  2. Test tube holder - Wikipedia

    en.wikipedia.org/wiki/Test_tube_holder

    A test tube holder is used to hold test tubes. [1] It is used for holding a test tube in place [2] when the tube is hot or should not be touched. [3] For example, a test tube holder can be used to hold a test tube while it is being heated. [4]

  3. Crucible tongs - Wikipedia

    en.wikipedia.org/wiki/Crucible_tongs

    Crucible tongs are scissors-like tools with a pair of attached arms that curve outward near the ends to form a rounded gripping area that allows users to safely grasp crucibles, flasks, evaporating dishes, or small beakers. [1] They are made of durable metals—stainless steel, brass, or nickel, for example—that can withstand high ...

  4. Test tube - Wikipedia

    en.wikipedia.org/wiki/Test_tube

    The tube is usually held by its neck with a clamp or tongs. By tilting the tube, the bottom can be heated to hundreds of degrees in the flame, while the neck remains relatively cool, possibly allowing vapours to condense on its walls. A boiling tube is a large test tube intended specifically for boiling liquids.

  5. Test tube rack - Wikipedia

    en.wikipedia.org/wiki/Test_tube_rack

    The 1 well rack is designed to hold only one test tube or any tube that fits in the space. It is normally made of epoxy-coated steel wire [ 6 ] but can also be made of polystyrene. The racks made from polystyrene are friction-fit and can only hold tubes that match in size to the rack.

  6. Pliers - Wikipedia

    en.wikipedia.org/wiki/Pliers

    Special tools for making crimp connections in electrical and electronic applications are often called crimping pliers or crimpers; each type of connection uses its own dedicated tool. Parallel pliers have jaws that close in parallel to each other, as opposed to the scissor-type action of traditional pliers.

  7. Tongs - Wikipedia

    en.wikipedia.org/wiki/Tongs

    Tongs consist a single band of bent metal, as in sugar tongs, most asparagus tongs (which are no longer common) [2] and the like. Sugar tongs are usually silver, with claw-shaped or spoon-shaped ends for serving lump sugar. Asparagus tongs are usually similar but larger, with a band near the head that limits how far the tongs can expand.

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  9. Forceps - Wikipedia

    en.wikipedia.org/wiki/Forceps

    Surgical forceps are commonly made of high-grade carbon steel, which ensures they can withstand repeated sterilization in high-temperature autoclaves. Some are made of other high-quality stainless steel, chromium and vanadium alloys to ensure durability of edges and freedom from rust. Lower-quality steel is used in forceps made for other uses.

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