Maximum operating time
The longest time that a self-powered electric kit (see "Type") (see above) can operate without changing batteries or recharging the battery. The higher this indicator, the more convenient the device will be in operation, the less often you will have to be distracted by its maintenance. At the same time, note that in the characteristics, the operating time is given, usually, for perfect conditions: with a minimum load on the nozzle (or even at idle), using high-quality batteries, etc. The actual time of continuous operation is highly dependent on the characteristics of the mode of use and can be noticeably less than the claimed one.
Power
The power of the device is related to both its performance and consumption. But in general, high power characterizes more features and improved typing performance.
So, models with a power of 3-15 W are intended for the most part for individual use. Manicure sets of this class are not designed to work in salons where there is a large flow of users. Low power devices are only suitable for processing natural nails.
Milling cutters with a power of 15-25 W can be classified as semi-professional. Manicure sets of this class can be safely used both at home and in a beauty salon, and the power of the product is quite enough for comfortable processing of both natural and false nails.
Milling cutters with a power of 25-50 W and more belong to the professional class. Such devices are designed for the most automated hardware manicure and pedicure. Milling cutters of this class allow you to quickly and safely serve a large flow of users. In addition, high-power manicure sets often additionally boast advanced functionality.
Maximum revolutions
The maximum speed of rotation of the working nozzle of the set. The higher the rotation speed, the more performant the effect will be. But more is not always better, especially for sensitive people with delicate skin.
Usually, models with a maximum speed of up to 5,000 rpm are more suitable for processing natural nail tissue and cornea. Cutters with a maximum speed of over 5,000 rpm are already capable of processing both natural nails and false nails made of acrylic and other synthetic materials.
Professional grade manicure sets can have a maximum rotation speed of up to 30,000 — 45,000 rpm and even more.
Nozzles
Types of nozzles supplied with the manicure set. Nozzles are supplied with electric models only (see "Type").
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Polishing cone. Conical nozzle designed for polishing — i.e. processing the surface of the nails in order to give them shine and a neat look. Has a small notch or felt coating. The shape of the nozzle allows you to process both individual small areas and large areas — in the first case, a pointed tip is used, in the second — the straight part of the nozzle is closer to the base.
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Cone for grinding. In this case, it means a conical nozzle designed to treat dry and rough skin around the nails on the hands, as well as cleaning ingrown nails. It is usually small in size, which is why it may also be called a "thin cone nozzle".
— Cone for filing. Conical filing heads have a non-standard shape — they do not taper towards the end, like most cones, but, on the contrary, expand. This allows you to conveniently file your nails, including in hard-to-reach places. One of the most popular materials for such nozzles is corundum.
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Oval for grinding. A small oval-shaped nozzle used for grinding the lateral ridges and the area along the cuticle.
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Cylindrical for grinding. This attachment is designed to gently remove rough skin around the nails.
— Spherical for grinding. The s
...pherical working part of this nozzle has a small shape, so it is convenient for delicate treatment of nails and cuticle removal on hands and feet.
— Polishing disc. A disc nozzle with a fine notch or felt coating, designed for fine polishing of nails — both the nail plate itself and the edges after filing. It has a fairly large size, due to which it captures a larger area during operation than a cone.
— Grinding disc. The main purpose of all grinding discs is the treatment of rough skin and calluses — primarily on the legs, but there are nozzles for the hands. Note that discs can vary in size (larger for legs, smaller for hands) and processing intensity (for coarse and soft grinding).
— Cutting disc. A disc with a rough coating — usually corundum — designed for filing nails and giving them the desired shape. Especially such a nozzle is useful for large and thick nails. Discs can be designed for both fingers and toes; the second variety is noticeably larger.
— To lift the cuticles. A nozzle in the form of a characteristic spatula that allows you to lift the cuticle for accurate cutting (usually this is done after softening in the bath or using a special tool). One of the few nozzles that does not rotate during operation.
— To remove calluses. A specialized nozzle for removing corns, usually on the legs. It can have a different shape and design: in specialized machines for working with corns, this is usually an abrasive roller, in multi-purpose models — a cone.
— Cleaning brush. A device for gently cleaning the surface of the nail from dirt. Thanks to soft bristles, it does not have an abrasive effect and does not injure the nail and the skin around it.
— Massager. Nozzles of this type, usually, are intended for facial massage, however, some of them may have other specializations.
Note that this is not the whole list — in some models, other attachments may be provided, for example, a foam rubber sponge or an eyelash curler.