Round-nose pliers are a tool of the pliers-hinged group. They have a very characteristic design, which is presented in the form of elongated tapering working sponges of a rounded shape (which was the basis for assigning such a name to the device). This device is made of steel, while the mandatory requirement of complete convergence of the jaws and the absence of play between them must be observed. The product must have the trademark of the manufacturer, which confirms the compliance of the device with GOST RF.
Content
Round-nose pliers are a hand tool for fitting and installation work (if their handles are protected by a dielectric material, then electrical work is also allowed). The functionality of their design is to hold or twist small objects, which makes them very similar to conventional tongs. The main feature is the round working jaws, which can have two basic shapes - conical and cylindrical. The latter differ in the same diameter of the working part, but for the former, the diameter will narrow as it approaches the end. Also, round nose pliers can be made in a general curved / straight shape, depending on their purpose.
There are also special, so-called "half-pliers", in which one sponge is rounded and the other is completely flat. They also include such models, in which the working parts differ in diameter, i.e. one lip is larger, the other is smaller. These samples successfully cope with tasks when it is necessary to quickly, and without changing the tool, round the wire to different diameters.
According to the manufacturing standards of the type of devices in question (both Russian and international), the inner sides of the working lips must have special notches.They will not allow workpieces and parts to jump out of the clamping state. However, this requirement does not apply to some samples of round nose pliers, for example, jewelry. When working with soft precious metals, these notches will only interfere. From this it is clear that round-nose pliers need to be selected according to future tasks: for massive parts, the issue of reliable retention will be acute, so a model with notches is required, and when working with thin and soft material (for example, sheet gold) they are simply not needed.
As for electrical work, they use models in which the handles have the appropriate insulation. It is made of various dielectric materials that can withstand voltages up to 1000 volts.
The type of tool under consideration is structurally steel tongs / tongs, which consist of:
Various variations of round-nose pliers models that exist today, although in many ways very similar to each other, are more often intended for carrying out a variety of types of work. The scope of their application is strictly regulated by the technical standards of both Russia and the international community. The main functions of the toolkit under consideration include:
Issues related to the manufacture and use of round pliers are regulated by international and domestic standards. GOST RF No. 7283 of 1993 describes in detail the design features and technical manufacturing conditions that the device must comply with, namely: all possible sizes, materials of manufacture and coatings.
Among international documents, we can single out the ISO standards (International Organization for Standardization) No. 5743 and No. 5745 of 1988. They set out the same provisions as in GOST, but with some PERMISSIBLE deviations.
Despite the fact that these two devices have practical similar tasks, they have a number of significant differences:
To perform tasks of various kinds, there are special types of tools under consideration, which differ from each other in the form of construction.
This device features a flat inner surface, which makes it very similar to classic pliers. It is possible for them not only to tightly capture strips of metal and wires inside various devices, but also to form smooth bends, which is achieved by the outer rounded part of the lips.
They are a combined device with working parts of different shapes - they can be conical with a circular cross section or flat, like a classic instrument. Most often they are used for very delicate operations, for example, in the field of making jewelry.
This tool is characterized by a small size - their format is no more than 125 millimeters. Used to work with small parts, for example, in the radio engineering field.
They are also distinguished by their miniature size, but they have perfectly smooth working parts and do not have any notches. The thickness of their lips at the end may not exceed one millimeter. The manufacture of such a device is carried out on high-precision equipment, where computer control monitors compliance with the specified dimensions and parameters.They are used exclusively for the finest tasks: a set of beaded jewelry, making jewelry from valuable and soft metals, including inlay with ornamental / precious stones.
They are used specifically for accurate actions with various types of electronics, which is achieved due to the complete absence of the backlash effect and the most accurate and verified dimensions of the working tips. Again, high-precision equipment is used in their manufacture.
These traditional models have tapered ends and are used for gripping/holding small objects. They can be used in various fields - from plumbing and jewelry tasks to mine clearance in sapper business.
Such devices have internal cutting edges, which are located on the basis of the functional parts near the hinged fastener. Visually, they look like a tandem of side cutters and round nose pliers, which allows not only to capture the desired object, but also to strip the insulation from the wires, while trimming them if necessary.
This device belongs to a special group and is used for high-tech operations with electronic devices and elements that are very sensitive to electrostatic discharges. Its handles are made of conductive material, which allows you to safely dissipate electricity or allow the accumulated electrostatic discharge to drain through the operator's body.
Long-nose pliers have elongated dimensions of the working parts, which are clearly larger than those of a standard tool.Their length can vary from 100 to 200 millimeters, and this allows manipulations with wires and parts that are in a limited and hard-to-reach space (as an example, capturing, twisting or bending a wire in a strobe).
For such a device, the bending of the sponges can be from 30 to 80 degrees. It is used to capture wires / objects that are installed in a hard-to-reach place, for example, inside electrical appliances and electrical installations. Their bend can pass through the center of the working part or begin only at the end of the elongated jaws.
They are used by telephonists and are combined devices with a cross-shaped notch on the inner surface of the gripping long parts, and at the same time they have cutting edges. It is convenient for them to perform the most complex manipulations in the face of many tangled wires, and also, by means of cutting edges, to carry out operations for stripping and cutting the wire without removing it from the device.
They are characterized by the presence of especially reinforced insulation on the handles and are intended for servicing electrical devices that are energized up to 1000 volts. The dielectric coating for them is made of specialized insulating materials, such as special plastic, rubber or ebonite, which exclude the possibility of electric shock to a working operator. The design also provides for special stops located closer to the functional part, and anti-slip pads prevent accidental slipping of the palm during manipulations.
IMPORTANT! This tool requires an annual test according to state standards to confirm its performance!
This design is distinguished by the presence of a special safety ring, which is installed on the inside of one handle, so that the device can be fixed on the operator's belt or on an external hook, which is very convenient when carrying out manipulations at height.
These are round-nose pliers that have elongated jaws and allow you to interact with various types of fasteners located in hard-to-reach spaces inside mechanisms and devices. They differ in the diameter of the working ends, which can be either straight or bent at 90 degrees, which is convenient for penetrating into the hole of the retaining ring. The peculiarity of this tool is the presence of a mechanism for limiting the efforts of the operator, which prevents the possibility of accidental damage to small parts. At the same time, such models have elongated handles, which is necessary to facilitate the process of removing the rings.
When buying round-nose pliers, you should pay attention to the following aspects:
This nickel-plated model features 160mm two-piece handles that allow you to grip wire, thin metal sheets for holding, bending and other plumbing work. It will become an alternative to pliers if you have to carry out actions in hard-to-reach places. It has a protective nickel coating to prevent corrosion and increase wear resistance of the round nose pliers. The working parts have increased hardness, tk. hardened by high frequency currents. Two-component handles increase the comfort of manipulation, because they do not slip in the hands. The stops on the handles do not allow the hand to slip, thus protecting the master from injury.The recommended cost for retail chains is 490 rubles.
This professional pliers meets the highest industry standards and is designed to grip and hold flat and round objects. It has an eccentric hinge arrangement, which increases the transmission of force by 70%. Made from Cr-V steel for an optimal balance of hardness and strength. Designed for cutting wire made of steel, copper, aluminum. The recommended cost for retail chains is 580 rubles.
This jewelry tool is made of high carbon steel. It easily and comfortably fits in the hand, will not slip in the palm of your hand, as the handles are covered with technical rubber. Used to perform precision jewelry work when creating costume jewelry and jewelry. Great for twisting pins into loops. It has side cutters / wire cutters, which are necessary for biting off wire, cable and pins, while the cut is even. Thanks to thin jaws that fit snugly together, even the smallest parts are securely held. Tool length - 9 - 10 cm.Due to the curved shape of the jaws, the working surface increases, which means that there are more points of contact between the tool and the part. The recommended cost for retail chains is 930 rubles.
This versatile tool has straight elongated jaws. Used to clamp and hold small flat and cylindrical elements during repair work. Made from chrome vanadium steel. The device is equipped with side cutting edges, with which it is possible to bite through a wire or a thin rod. Comfortable metal handles have overlays with an embossed surface made of impact-resistant and non-slip polymer. The recommended cost for retail chains is 1110 rubles.
These elongated platypuses are used to grab and hold parts that are in recesses or other places that are difficult to reach with conventional tools. Made from chrome plated tool steel. They have long narrow jaws, which are convenient for grabbing small flat objects. The metal handles are padded with shock-resistant and non-slip polymer. The recommended cost for retail chains is 1622 rubles.
This product is designed to hold various flat objects. The tool is made of durable material and has a special shape, which allows them to be used in hard-to-reach places. The handles of the platypuses have an anti-slip coating, which ensures comfort during use. Has a long service life. The working area of platypuses has a special shape. The recommended cost for retail chains is 1920 rubles.
This product with a cutter is designed to grip and cut wire of varying degrees of hardness. Serrated gripping jaws provide a firm grip on the workpiece. The cutting edges have a hardness of 61 HRC. Chrome vanadium electric steel significantly extends the service life. The chrome-plated head is protected from corrosion. Special plastic covers on the handles prevent hands from slipping during operation. The recommended cost for retail chains is 3750 rubles.
The model is designed for the most delicate installation and adjustment work, as well as for bending. The length of the jaws is 55mm, which allows you to work in hard-to-reach places. The curved handles are equipped with plastic covers that prevent slipping and provide comfortable work. Light weight significantly reduces the energy consumption of work. The gripping jaws have been precision machined. The recommended cost for retail chains is 4050 rubles.
This product is a multifunctional tool for manual electrical work. The model is suitable for stripping solid and stranded wires with a cross section of 1.5 mm² and 2.5 mm², cutting wire of various degrees of hardness, as well as crimping ferrules. The tool is easy and comfortable to work with, the tilted head and optimal leverage ensure ease of operation without fatigue. The recommended cost for retail chains is 4680 rubles.
Round-nose pliers are designed to perform a limited type of work, therefore, when making a purchase decision, you need to accurately determine the scope of the tool and focus on its exact technical parameters - this is the only way to make the right choice.