Nibbling scissors for metal: an overview, types, manufacturers and reviews

In metalwork and carpentry, a mechanical tool for cutting metal is still used to perform typical simple operations with soft sheet material. But quality figured processing of thick and corrugated products is impossible without the support of the electric drive. Such work with minimal costs can be performed by the shearing metal scissors, also called punching scissors. This is a hand-held device designed to cut not only sheet roofing materials, but also valves with pipes.

The design and operation of the instrument

Outwardly, such scissors resemble a modern electric screwdriver. The design provides a body of approximately the same dimensions, and even the electric drive has similar performance characteristics. Differential scissors for metal only with a cutting mechanism. It is represented by a cutting punch intended for reciprocating movements. During processing, the mechanism performs the deflection of the metal, cutting off one of the parts of the workpiece about the sharpened matrix.

Compact dimensions of the scissors ensure maneuverability, which makes it possible to perform work operations in difficult conditions. This quality is especially significant when working on the roof with a profile and metal. To make the curvilinear cutting, the shearing metal shears "Cricket" are also used, which differ in the special nozzle inserted into the cartridge.

This device, by the way, can be used as an addition to a conventional electric drill - it is enough to compare the nozzle parameters with the characteristics of the main tool in advance.

Varieties of nibbling scissors for metal

All models of shearing scissors can be divided into household and professional. They differ in performance. For example, modifications designed for home use, provide a cut in the range of 1-3 mm. This is enough to work with a thin roofing profiled without high corrugation. In professional working operations, metal nibbling scissors with a cutting depth of up to 5 mm are more often used. It is quite possible to implement the processing of reinforcement by such a tool. Regarding the quality of work, both varieties show similar indicators. The difference can be manifested only in operations with a problematic hard metal - in such cases it is desirable to abandon the use of low-power household models.

Reviews of the BN 503 from Sparky

Sparky company offers universal shear scissors in modification BN 503. According to users, this model qualitatively performs processing of metal and plastic products. The tool is given a curved cut if the target material is represented by a thin sheet.

It also notes the physical strength of the device - to increase reliability, the manufacturer provided the apparatus with a gear box made of metal. Due to the switch in the "Start" position, the processing process is much easier for the master. In addition, the Sparky metal cutting shears can be supplemented with an auxiliary handle, which is mounted on the left or right side to the user's choice. According to the nature of the work, this model is still considered a household model, since with hard steel sheets, for example, this tool copes with some difficulties.

Reviews about the model JN 1601 from Makita

This is a more productive model, equipped with an electric motor for 550 watts. As practice shows, the Japanese tool is suitable for working with ordinary sheet, wavy and corrugated trapezoidal metal. Owners of the device highly appreciate the possibility of turning the head 360 degrees. It can be fixed in four positions, the step between which is 90 degrees. Like all modern models of hand power tools, the Makita metal shear cutters of the JN 1601 version provide for the presence of carbon brushes that protect the engine from premature breakages.

Users of the model emphasize that the process of their replacement is greatly facilitated due to open access. The advantages of the device include external ergonomics, which is facilitated by a convenient grip, the presence of a fixed start button, as well as the limiting grooves that relieve the master from controlling excessive depth of cutting.

Reviews of the model GNA 3,5 from Bosch

German designers are known as manufacturers of quality tools, which combines both functionality, performance, and durability. According to those who use the model GNA 3.5, it fully meets these characteristics. A high power potential of 620 watts makes it possible to work at a professional level. Practice shows that the tool effectively works with a cutting thickness of 1.6 to 4 mm. At the same time, the device is free from the drawbacks inherent in high-power units.

In the process of work, the metal shearing scissors produce a minimum of noise and do not inconvenience the vibrating effect, which contributes to the quality cut. The minuses of this modification include a large weight of 3.5 kg. But to compensate for the load, the manufacturer also provided for the possibility of completing the design with a convenient grip.

Conclusion

The availability in a private economy of a specialized tool for cutting metal products is undoubtedly a good help in the process of performing repair work. Repairing the roof, assembling the fence from the corrugated board and even cutting fine fixtures - all this helps to perform hand-cutting scissors for metal, without requiring the connection of specialists. But the cost of this tool is quite high and on average is about 10-15 thousand rubles. Professional modifications and may cost 30-40 thousand. Of course, for rare and occasional events such an acquisition may seem superfluous, but do not forget about the quality of metal processing that no other tool from the household segment can provide.