Rated pressure
Air pressure for which the
pneumatic nailer/stapler is designed (see "Type"). It is this pressure that the compressor to which the tool is connected should give out: if the pressure is too low, the efficiency will noticeably drop, and if it is too high, it can lead to breakage and even injury.
Air consumption
Normal air consumption during operation of the pneumatic nailer/stapler (see "Type"). Indicated per one hit; knowing the performance of the tool (see below), it is possible to assess whether the performance of the existing compressor is enough for the normal operation of the stapler. For example, for a model that produces 150 beats / min and consumes 3 liters per beat, ideally at least 3 * 150 = 450 liters of air per minute are needed. At the same time, in fact, even the most experienced operator finds it difficult to maintain a pace of 90 bpm or more; therefore, in fact, even relatively low-power compressors that do not reach the perfect value often turn out to be quite suitable for "quick-fire" staplers.
Magazine capacity
The number of fasteners that fit in the stapler magazine.
Note that manufacturers tend to indicate the maximum number of parts in the characteristics — that is, the capacity for the thinnest fasteners allowed by the design of the tool. Accordingly, fewer larger parts will fit in the store; this must be taken into account when choosing. Nevertheless, this parameter makes it possible to evaluate the instrument and compare models similar in class to each other.
Large capacity, on the one hand, allows you to work longer without interruptions to recharge the stapler. On the other hand, volume magazines are usually very bulky and can weigh a lot on their own, not to mention the weight of the fasteners loaded in them. Also, if parts are charged one at a time, recharging can become quite a long and tedious affair. Therefore, it makes sense to specifically look for a tool
for 100 parts or more(especially when it comes to thick fasteners) only if the ability to work for a long time without reloading is more important than the disadvantages described above.
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. staple length
The smallest length of staples (see Fastener Type) that the stapler can work with.
The length in this case means the length of the leg — in other words, the depth to which the staple clogged "to the stop" penetrates into the material. Small staples do not require much power to drive, but the tool may not be designed for fasteners that are too short due to other parameters — for example, the design of the magazine. Therefore, for many models, this limitation is quite relevant, and in powerful professional models, the minimum length can be quite large — more than 20 mm.
Max. nail diameter
The largest thickness of nails (see "Type of fastener") that the stapler can work with.
Thick nails require not only the appropriate size of the magazine and feeder, but also significant effort is required to drive them. Therefore, the larger the maximum allowable nail diameter, the more powerful, heavier and more expensive the tool, usually. Professional pneumatic nailers can be compatible with fasteners of 3.5 mm or more, but for entry-level tools, a thickness of 1.2 — 1.5 mm is often more than enough.
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.Case (bag)
The presence of a case or bag in the tool kit.
Such accessories are more convenient than impromptu packaging, they greatly simplify the storage and transportation of both the tool itself and accessories / consumables. At the same time, cases are the most popular in construction staplers — characteristic suitcases made of solid material. Such a suitcase perfectly protects the instrument not only from moisture and dirt, but also from shocks and shocks; it is also often used as the factory packaging in which the tool goes on sale. Bags made of soft material, in turn, are less common: they do not provide such protection against impacts, and they do not resist water / dust as effectively. On the other hand, such packaging itself is less bulky, and when the bag is not needed, it can be rolled up quite compactly.