Multi Power Tools: specifications, types

— Rotary engraver. A tool designed mainly for engraving and using a rotating working head for this. However, engravers can also be used for other types of work — drilling, cutting, grinding, etc. In fact, they are hybrids of drills and grinders with low power and compact dimensions (both the tool itself and the working nozzles).

— Impact engraver. A type of engraving tool in which percussive action is used for processi...ng. Such models have a narrower specialization than the rotary engravers described above; they are practically not used for purposes other than engraving and embossing.

— Renovator. A specific type of hand tool, which is closest in design to grinders. The key difference is the principle of operation: the nozzle of the renovator does not rotate during operation, but vibrates finely at a high frequency. The variety of nozzles themselves is very large, which allows you to perform a wide range of work: grinding, cleaning, cutting, sawing, etc. Most of these models, however, lose out to specialized units like electric saws or electric jigsaws, however, with relatively simple work of a small volume, the renovator may well replace several tools at once. In addition, such tools can be useful in difficult cramped conditions, and the accuracy and accuracy of processing is often higher than when using the same saws.

— Multitool. In accordance with the name, this variety is the most versatile and diverse in terms of equipment. The design of the multi-tool includes the main unit and several removable heads, by changing which you can turn the tool into a drill, renovator, jigsaw, etc. On the one hand, it is convenient — it is easier to carry one universal unit with you than several specialized ones, despite the fact that the power and performance of such devices can be quite high. Also note that if necessary, additional heads can be purchased separately. On the other hand, the mentioned versatility is rarely required in fact, and the tools themselves are expensive. As a result, it is often easier to purchase individual specialized models than to shell out a "round sum" for a multitool or look for additional interchangeable heads that are not sold everywhere. Therefore, there are relatively few models of this type on the market.

— Electrochisel. A tool designed as an electrical analogue of a conventional chisel used in joinery, carpentry, and woodcarving. In electric chisels, the blade vibrates at a high frequency; due to this, such a tool can be used not only for removing a layer of wood, but also for chiselling, similar to a chisel (and, unlike a conventional chisel, without using a hammer). As working nozzles, scrapers (see "Nozzles") of various shapes and widths are used; in some models, the number of nozzles in the kit can reach one and a half dozen.

Types of interchangeable heads supplied with the multitool(see "Device"). The most common options are:

— Renovator. A renovator is a tool that uses the vibration of a working nozzle to carry out various types of work. For more details, see the relevant paragraph above, in paragraph "Device".

— Drill / screwdriver. Usually, in this case, a universal head is meant, suitable for...working both as a drill and as a screwdriver. However, the features of such heads and their suitability for different types of relevant work may be different, so the specifics of the application in each case should be clarified separately.

— Electric jigsaw. Head for sawing plywood, wood, metal and other materials with a blade moving back and forth. By themselves, jigsaws are usually quite versatile, and their suitability for a particular material is primarily associated with the presence of an appropriate file.

— Delta grinding. A specific type of grinder — it uses a triangular nozzle for work, similar in shape to the Greek letter "delta" (hence the name). Like renovators (see above), they work on the principle of vibration of the working nozzle. Such machines are used mainly in specific places where it is impossible to use another tool — for example, on recessed surfaces with corners.

This list is not exhaustive — other types of heads may be provided in the kit, in addition to those described above.

The electrical power consumed by the tool during normal operation. Usually, the characteristics indicate the power at the maximum speed / frequency of movements of the working nozzle.

Usually, the higher this indicator, the more intense the tool can act on the material being processed, the better it is suitable for difficult conditions (large volumes of work, hard materials). At the same time, note that high power significantly affects energy consumpti...on; in mains-powered models (see below), this puts strain on the wiring, and in battery-powered models, it requires the use of bulky and heavy batteries and significantly reduces battery life. Yes, and this parameter significantly affects the dimensions, weight and price of the tool itself. Therefore, it is worth choosing a model according to power consumption, taking into account the specifics of the work for which it is planned to be used: for example, it hardly makes sense to purchase a high-performance professional tool for minor repairs around the house or in the country.

Specific recommendations on the optimal power values, depending on the type of tool and the purpose of its use, can be found in special sources.

The speed of rotation of the working nozzle provided by the tool. Some models have a fixed rotation speed, others allow you to adjust it within a certain range (see "Number of speeds").

For different types of tools and types of work, different values of this parameter will be optimal; therefore, it is worth choosing taking into account the tasks that are planned to be solved using the tool (it is best to consult with special sources). We note only a couple of general patterns. So, for e...ngraving on relatively soft and pliable materials (wood, glass, soft metals), high speed is not required, but for hard and difficult to process (steel, precious stones), a high-speed tool is better suited. But when drilling, note that for the same power consumption (see above), more revolutions, usually, means lower torque values. That is, here “high-speed” tools are better suited just for soft materials, and low-speed tools are better suited for hard and heavy materials.

The vibration frequency of the working head, provided by the tool in the renovator or delta grinding mode (for more details on the modes, see "Replaceable heads"). For different types of work and different materials, the optimal frequency values \u200b\u200bwill also be different; therefore, when choosing, it is worth consulting the reference literature or a specialist and making sure that the selected model will provide the required number of oscillations.

In some models, t...his parameter can be adjusted - this makes the tool more versatile.

The amplitude of movements performed by the working nozzle, in other words, the distance between the extreme points of the stroke. This parameter is relevant primarily for electric chisels ; at the same time, in most models, the stroke does not differ much from the standard indicator of 2 mm, which is quite sufficient for use for its main purpose, and this parameter is more of a reference than practically significant.