Thin-nose pliers are intended for work where access to the work site is difficult, or to facilitate operations with small parts, nails, wires, and the like.
Long-nose pliers (also called thin-nose pliers) - is a group of locksmith articulated-lip instruments with elongated, narrowed to tips, semicircular or flat jaws. They have the ability to perform more delicate operations than conventional pliers. It is the thin, flattened shape of the tips of the sponges that allows the tool to penetrate into the most inaccessible places of instruments and devices.
Long-nose pliers are called hinged because of the presence of a pivot joint of the levers in their design, which ensures smooth movement of the levers without jamming of the levers relative to each other, and the name “lip” appeared due to the use of sponge-shaped holders.
The thin-nose pliers can have various sizes. Most often there are tools equipped with a device that helps to bite wires or wire of small thickness. The thin-nose pliers have handles made of metal, and for conducting electrical operations they are provided with dielectric covers, or they are made of plastic. Despite the fact that any work on equipment with uncontrolled voltage is strictly prohibited, the presence of such handles eliminates any accident that could lead to electric shock to the worker. Clamping surfaces are provided with corrugations (notches) so that the fixing of the part is more reliable. It is allowed to cover not the entire surface of the sponge with corrugation, but to make some indentation from the tip.
Scope of application
The main ways to use thin-nose pliers are:
- retention of small hardware, which is not always possible to hold with your fingers, which makes operations such as hammering nails, for example, safer;
- untwisting / twisting of threaded connections to which access is difficult;
- facilitation of electrical operations carried out with the help of thin-nose pliers; they prepare wires, cut and straighten cables;
- their use in the repair of engines and electric motors of household appliances (vacuum cleaners, washing machines, kitchen electrical equipment);
- various precise operations related to jewelry and jewelry making.
Double-jointed thin-nose pliers can be divided into several varieties.
- In the shape of the sponges they are straight and curved. Use straight jaws if it is difficult to work in a limited space while holding the workpiece. The curved lips of the thin-nose pliers have bent ends, with which it is convenient to work in hard-to-reach places. So, they are needed when it is necessary to install small-sized fasteners in electronic devices and devices, and the access angle does not correspond to thin-nose pliers with a straight jaw shape. A good example is the whole Zubr family of thin-nose pliers. Of these, one model is available in lengths of 125, 150, 160 and 200 mm, it has curved ends of the jaws and is equipped with dielectric insulated handles with permission to work under voltage up to 1000 V.
- Another classification is made according to the length of the thin-nose pliers. Tools with a length of 500 mm and less are available. Their use depends on the task performed, on the size of the parts that they plan to hold. The most common models of thin-nose pliers are tools with a length of 140 +/- 20 mm.
Larger round pliers are used when performing locksmith operations, and shorter if they need electrician services when it is necessary to repair electronic devices or household appliances such as mobile phones or computers. Longer than the Zubr family of thin-nose pliers are straight Gross thin-nose pliers, also equipped with dielectric handles that allow you to work with equipment with voltages up to 1000 V. In addition, the lips of the Gross thin-nose pliers are equipped with faces that allow you to use the tool like a wrench.
- A separate place is occupied by mini-thin-nose pliers, which are used by jewelers and specialists in the manufacture of various jewelry. These are the smallest-sized models, they do not have notches on the lips (a notch can damage the fragile material of jewelry) and they do not need to have insulated handles, although pads that make the grip more comfortable are still available.
How to choose?
The choice of thin-nose pliers is usually approached based on the scope of their application. But it is also necessary to consider the materials from which the sponges and the coating of the handles are made. Quite important is the presence of a dielectric coating.
First of all, it is recommended to check the symmetry of the sponges. If the thin-nose pliers do not provide a tight and even closure of both jaws without skewing, if the notches do not match, there is no spring to open the handles of the tool, or there is no possibility of its installation, it is better not to purchase such a model.
The simplest models of thin-nose pliers are completely made of tool steel. They can not perform a number of electromechanical work under voltage, but they are quite suitable for reliable fixation of small parts in hard-to-reach places and providing access in a limited space.
In the manufacture of thin-nose pliers, the manufacturer must affix a well-readable marking to them. Other signs and designations are not binding.
If thin-nose pliers are made using combined methods (chrome vanadium or chrome-molybdenum steel is used for sponges, and tool pens for handles), such a tool will be more universal. And also sometimes in the production of the sponge area equipped with nippers, titanium alloys are used, which already refers to thin-nose pliers as professional tools.
In addition, the surface of thin-nose pliers is coated with special anti-corrosion compounds, which consist of substances that prevent corrosion and rust.
Coating the handles of thin-nose pliers is of particular importance. If there is no additional coating on the steel handles, this is the simplest version of the tool. But today, such models are rare, mainly produced by thin-nose pliers having linings made of various dielectrics, which, in addition to the protective function, are more convenient during operation, since they are usually given an ergonomic shape.
The manufacturer of thin-nose pliers also takes not the last place when choosing. As for other tools, the same laws exist for thin-nose pliers - a well-known manufacturer takes care of its image and does not allow a decrease in quality, as happens with lesser-known companies. This means a longer and safer tool operation, although it will cost a little more. In addition, you must make sure in advance that the specific model of the tool corresponds to the positive opinion of specialists, and at least it should have a decent amount of positive feedback on the Web.
The most serious requirements are imposed on the quality of production of thin-nose pliers, they must be made in accordance with a number of state standards, undergo mechanical tests after manufacture, and for tools that are planned to be used in the repair of electrical equipment with voltage up to 1000 V, additional requirements are provided in accordance with GOST 11516.
See more about thin-nose pliers in the video below.