Spring
The main structural element of the construction stapler. The spring first compresses, accumulating mechanical energy, and then decompresses, releasing it to clog the fastener. According to the type of springs are divided into two subcategories:
— Vitaya. The impact mechanism with a twisted (torsion) spring is cocked and then released when the lever is pressed. The force with which the bracket will be clogged is regulated using a special screw, if it is provided for in the design. The working resource of a twisted spring averages 10-12K strokes, after which the recoil becomes stronger and it is no longer so comfortable to work with the tool.
— Plate. In staplers with a leaf spring, a flat spring located horizontally is responsible for the tension of the striker. Usually, this type of springs is used in professional tools — they have a long service life (about 55 – 60K strokes), which allows the use of construction staplers for large-scale work.
Compatible staples
Staple models that the tool is compatible with.
Usually, quite specific options are indicated in this paragraph, so finding compatible consumables is not difficult. The specific dimensions of the fasteners should be specified according to the manufacturer's data — different brands use different markings.
Max. staple width
The largest width of staples (see Fastener Type) that the stapler can work with.
The width of the bracket is, roughly speaking, the distance between its legs. Different situations and types of work require different sizes of staples, and sometimes the width must be quite large. However, a staple that is too large simply will not fit into the store, not to mention the fact that the stapler can “shoot” it normally. Therefore, this limit cannot be exceeded, and if you plan to work with brackets, you should pay special attention to the maximum width when choosing.
Min. nail length
The shortest length of nails (see Fastener Type) that the stapler can handle.
The shorter the fastener, with the same thickness, the less effort is required to drive it, but a nail that is too short simply cannot stand under impact normally. Therefore, for many instruments, this restriction is directly indicated. It is worth paying attention to it first of all if you plan to work with small short nails.
Functions
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Adjustment of impact force / depth. The ability to adjust the force of impact or the depth of clogging fasteners. These functions are implemented somewhat differently: the impact force is changed by adjusting the power supplied to the striker upon impact, and the driving depth can be set due to a mechanical limiter — for example, by retracting the striker a certain distance back, so that it simply does not was able to move beyond a certain distance. However, the purpose and use of these functions is similar: first of all, they allow you to change the depth to which the fastener is driven into the material. In addition, adjusting the force of impact (namely force) can be useful when working with delicate materials, where too powerful impacts are undesirable. Specific details of the implementation of this function should be clarified in each case separately.
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Double hit. Possibility of operation of the stapler in the double impact mode. Here, this term means the ability to drive two fasteners at once in one blow — for example, for connections that require increased reliability. Note that double impact most often only works on staples, even if the tool is able to work with other types of fasteners (see above). Firstly, it is for brackets that this possibility is most relevant; secondly, it is much more difficult to implement it for nails or pins.
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Bending the staple.... The ability of the stapler to work not only for driving staples, but also for bending their legs after installation. The need for bending arises in cases where the tool is used to fasten relatively thin layers of material, and the staples pierce the parts to be fastened through: bent legs provide a secure hold, and are also safer — the risk of scratching or pricking the protruding edge of the staple is minimal. Note that such work requires an anvil of hard material placed under the fastened materials; in some tools with a bending function, the anvil is part of the design, but most often it is not.
— Blade of knife. The presence of a knife blade in the design of the stapler. This feature allows you to use the tool not only for driving fasteners, but also for cutting material — for example, preparing upholstery for furniture. The blades are usually made removable (so that a dull one can be quickly replaced with a fresh one or sharpened with convenience) and have a beveled shape (this allows you to cut with the very tip of the knife, providing high accuracy and accuracy). However, this function is quite specific, therefore it is rare, and mainly among percussion models (see "Type") — only they turn out to be quite light, compact and convenient for use as knives.
— Backlight. The presence in the stapler of its own built-in flashlight, usually directed in such a way as to highlight the place of impact. This feature is extremely useful when working in low light conditions. Note that such conditions can easily arise even under normal ambient lighting: for example, the tool itself often obscures the impact site, worsening visibility and complicating accurate aiming.
— Brushless motor. Such motors do not have the classic carbon brushes found in conventional power tools, whose friction during engine operation leads to additional heating, which leads to unnecessary energy consumption and general engine wear. Refusal to use them allows you to extend the battery life of the tool, on the one hand, as well as the life of the engine, on the other.