An electric drill

Household electric drills are designed for a few hours a day, because the mechanisms of these instruments are made of soft alloy, if not of sound plastmassy.Sama construction of an electric drill is designed to work with a variety of materials. To do this, they have a special controller turns on the switch button (for use with a tree one speed to work with metal - other). Incidentally, this adjustment can be infinitely variable, with a smooth transition from one mode to another. There is a household electric drill fitted with a function of shock action. This is the most advanced feature, which displays the tool almost to the level of the perforator. In the more "clever" household model has an additional feature screwing and unscrewing screws. For this drill provides switching speed and direction of rotation of the chuck. That is, for screwing screws drill operates at low speed and can rotate in both the right and the left side. After a certain number of revolutions a special mechanism in the drill as if podstukivaet drill, which allows the latter more effectively cut into the material. Moreover, the mechanism of shock action debugged so that the drill does not need to buy special drill bits, you can work the ordinary. Naturally, such a power drill can drill holes and without a hammering, it is enough to switch it to normal operation. Virtually all domestic electric drill equipped with keyless (manual) cartridge that allows you to quickly change the necessary drill without a key. At home the master is often necessary to drill a few holes to a certain depth. For this purpose, many household electric drill established special stops drilling, do not allow for holes deeper than necessary. On all domestic models set the lock button, which allows an electric polzovats without constant pressure on the start button. All imported household electric drills are sold in special plastic case. Depending on the equipment to them may be accompanied by a set of drills and convenient container to store them. Professional electric drills have all the professional power drill has two speeds: the ordinary and reduced, and they are designed for a longer time than the domestic. The latter is designed to work with large drills, which are slowly but surely to crash into stuff. It is also mandatory for such a tool is shock function. They can operate continuously for at least five hours, without loss of quality and without breakdowns. And they are designed to operate in more severe conditions (temperature changes, humidity and dust). When designing these products designers take into account certain parameters ergonometricheskie to fatigue from working with a professional tool for advancing as late as possible. For this modified form of handle an electric drill - it is easy to hold both right and left hand - and as more as possible facilitated weight of the tool, although the materials from which it is made very sturdy and durable. Accordingly, the person who is going to use professional power drill should have certain skills. Such a tool, but drilling is not intended to perform side functions. Although all attachments and devices designed for household electric drill, suited to him. It is also mandatory for such a tool is shock function. Domestic electric drills - quick and dirty If you do not plan to frequently use an electric drill, and the budget of your family is not very large, you'd better buy the domestic product. If you do not plan to frequently use an electric drill, and the budget of your family is not very large, you'd better buy the domestic product. Our drills are not very expensive and quite reliable in operation. Some "twists" (chisel function or screwdriving), they do not differ and can perform a unique and fundamental role - drilling. It is sad, but so far the build quality of domestic electric drill inferior to foreign analogs: very frequent lack of balance assemblies and mechanisms, which, of course, not the best way affect the work of an instrument - the error in precision drilling of holes up to 1,5-2,0 mm. Sore spot products produced in Russia are also launching a button, often going down. But, but, if so, our electric drill, as they say, "went" (parts and units of run), it will be no disruption for not one year. Undoubted advantage of domestic electric drill can be considered the fact that spare parts can be easily found in stores household power. There is another kind of electric drill - a model of the battery. It is designed to work in the absence of power. A small battery built into the bottom of the handle an electric drill. It can be charged from one to four hours (depending on model). Cordless electric drill with small loads of work up to three hours without a break. They are very convenient for the repair of vehicles on the road. Drill! When buying a drill, you need to pay special attention to the drills, which you need when working with a particular material. Drills on metal made of solid steel. In addition to the basic purpose, they can use when working with wood or plastic. Drills for wood are made of less durable steel than the drill bits for metal, but they have a special grind with scoring edge and the center for more accurate drilling. Drill on concrete. Concrete - a very intractable material, so the drills to work with him are special soldering of pobedita and other hard alloys. The most expensive and most are traditionally considered good-quality drill bits from Germany. This is, in general, understandable - to quality drills manufacturer produces high-quality drill bits.