Pliers are representatives of tools from the group of pliers. They are actively used in various fields of human activity. They are intended for extracting, capturing, as well as biting small metal products.
Historical perspective
Initially, as a tool, tongs were designed to extract hot metal blanks and crucibles of molten metal from furnaces. They were also used by blacksmiths to hold various blanks during forging.
Archaeologists prove that the prototype of pincers - tongs, which had a rod-axis - was invented in the Neolithic era. Then this instrument was made of burnt wood.
The first image of hand-held tongs tools date back to the 6th-5th centuries BC. In the Bronze Age, blacksmiths used primitive tongs as clamps. They are currently found in the graves of blacksmiths as grave goods, indicating that the deceased had a special and rather high social status.
Since ancient times, ticks are two castor beans thatconnected by a rivet that acts as an axle. This tool from ancient times testified to specialized blacksmithing skills. Together with the anvil and hammer, pincers were an attribute of numerous ancient Greek and Roman gods-smiths and thunder lords (Thor, Vulcan, Hephaestus, etc.).
Much later, pliers began to be used in construction work, in plumbing activities, widely used in electrical work, etc. Depending on the specialization and principle of the device, various pliers are called side cutters, pliers, wire cutters, pliers, etc.
Design, general purpose
Pliers are a versatile tool. It is an indispensable assistant both at home and at work. Their design is two parts connected. Each consists of two sections - a worker and a handle. Depending on the purpose for which the tool is intended, the ratio between the jaws (working part) and the handle may vary.
Thus, standard carpentry tongs have small rounded jaws that provide a secure grip. They are very convenient to pull out nails or remove fasteners that have become unusable.
Pincers are also a narrow-profile or combined tool. Some models can be equipped with a nail puller, screwdriver, and other devices that are located on the back of the holders.
Pliers: types of tools
Given the fact that pliers are a diverse and variable tool, they are divided into different types that are used in specificareas of activity.
The main difference between pliers (their varieties from the group of pliers) is in the form of a working surface. It determines their main purpose - blacksmithing, the railway sector, electromechanical and electrical work, medicine-dentistry, etc.
Pliers standard
This is a tool with long handles and short jaws. The latter are adjacent to each other in a small area and have flat or pointed edges. Their main purpose is to capture details.
Blacksmith tongs - a tool designed to hold hot metal. Mandatory attribute - long handles with various shapes of sponges.
Railway workers use special tongs that are designed to drag rails and sleepers. These are massive products designed to be operated by two or more people.
Plumbing pliers
Plumbing pliers, or pipe pliers, usually have a notched notch for easy gripping of pipes. The lips are slanted. The swivel of the parts can be rearranged, which allows the clamping of pipes of various diameters.
Pliers
Pliers are a type of pliers that have a flat working surface. Often it is equipped with small notches. They are designed to grip and hold relatively small parts. For the convenience of working with details, two such tools are sometimes used at once. They can have various forms of working surfaces,as a result, they got their own name: long-nose pliers, platypuses, narrow-nose pliers. Pliers are often equipped with cutting edges designed to cut wire.
Combination pliers are also called pliers. Such tools include pliers with a cutting edge for cutting through nails and wire, serrated notches designed to hold tubes, nuts and other cylindrical parts.
Round nose pliers
Round-nose pliers (a kind of pliers) differ from the previous type of tools in that they have a round section of the working parts (cone shape). They are intended for bending the wire in order to give it a curly shape. Their design allows you to make bends of various radii. It is an indispensable assistant for jewelers. This type of mites has sponges of various sizes, differing in thickness and length.
Cutters
Nippers are pliers with a cutting working surface adapted for biting rebar, nails, wire, etc. The cutting edges of the pliers are of different shapes. In this regard, they are divided into five main types: side (diagonal, side cutters), end (transverse), cable, stripping (pliers for stripping insulation), end.
The most commonly used side cutters or side cutters. They are also designed for cutting through metal structures, which include bolts, fittings, cables, cables, nails. They are particularly durabledesign, increased hardness of working edges. Often, the design uses a number of articulated joints in order to increase the compression force.
Other varieties of ticks
Wiring tools also belong to the varieties of pliers tools. Among them are terminal tools, crimping tools, insulation stripping tools, insulating tools (for fuse replacement work), current measuring tools, connector and cable gland tools, etc.
Photos of pincer tools of various shapes, where design differences and additional devices are visible, are presented in the article.
Conclusion
Quality pliers are made from rigid tool steel. The working part may have additional hardening - to increase the strength characteristics. To increase the resistance of this tool to the aggressive environment in which they will work, they are coated with special anti-corrosion compounds.
History shows that pincer tools made in the USSR were especially reliable. Demand for them among specialists and collectors is high and constantly increasing.
