How to choose a drill

Drill is needed in every farm, even if you do not enjoy repair, and your profession is not related to the drilling of holes in the walls. This multifunctional device allows not only to do various-caliber holes, but also screw the fasteners and save a lot of time. For a high-quality powerful perforator, there are no irresistible obstacles, but to get such, you need to know what to be guided when choosing. In this article we will tell what drill it is better to choose for home and for work.

Criterias of choice

When it comes to a good drill, many imply a reliable and practical tool, but among the huge variety of models, it is not difficult to get confused. When choosing a big role plays the cost, which specifically in this case determines the quality of the goods. But it is necessary to repel all the same on the purpose of the tool and the functions that it must be equipped.

Species, there are many tools, so you need to know how to choose the right drill. Classification functionality assumes that the shock function, adjustable speed (head rotation), a plurality of cartridges sizes and other characteristics. But among them all the same, there are three parameters: power, speed and size of the holes.

Characteristics affecting the choice of drills:

1. Power - on sale there are models that consume between 300 to 1500 watts. Know the nominal capacity is necessary not only in order not to overload the home network and to save on electricity. The more watts consumed, the faster the drill to cope with its task. From here you can make a logical conclusion that powerful drills are great opportunities and can work with very hard materials (concrete, masonry, metal). If you are planning to drill gipsokraton or wood, the 500 W will be more than enough.
2. Rotation speed - the number of revolutions of the head speaks of the possibility of interaction with different materials and attachments. It is clear that the higher the speed, the better, even if the power is not too high (these two parameters are not independent of each other). Performance is not too powerful drilling machines with a large number of turns may be higher than the power device with low rotational speed. If you are looking for a tool for grinding or polishing surfaces, it is better to choose the highest speed (up to 3000 rev / min). Shock models tend to have a higher rate than normal.
3. Speed \u200b\u200bcontroller - It's a useful feature that significantly expands the range of possibilities. With the help of fasteners which can be installed at a low speed and making the holes in the walls - at high.
4. The diameter of the holes - this parameter in conventional drills designed to work with wood and steel, at the drum - with concrete and other durable materials. To know the maximum drilling diameter is necessary to avoid being burn engine drills on the first day of work.

It is also worth talking about the varieties of cartridges. Modern models usually have two types of cartridges: quick-sample and gear. In the second case, the drill is fixed using a special key, but it is not very convenient, as the key is small and can easily be lost. Yes, and time on such manipulations goes far more than when refusing a quick-release drill. So, it is enough to insert a drill into a hole with a little effort. Flexible cartridges can be single-grade and twin (with two rotating rings - clamping and weakening). Drills with single-grade cartridges are elementary in circulation and perfectly suitable for "home" use. In the case of perforators, conventional cartridges can be used, but most often there is a SDS-PLUS mechanism, designed to use special drilling drill.

Check out the main errors when buying a tool to know how to choose a drill:

Professional or household?

If you watched the video above, you should immediately understand - in explanations with the seller-consultant, the first thing to be guided by the operational purpose of the drill. Any tool is household or professional (we will not talk about the industrial). The main difference lies in the loads that the device will be exposed. If the household drill work 5-6 hours daily, it will quickly burn. If you buy an expensive professional drill and get it out of the storage room a couple of times a year, her potential will be worse.

What drill to choose for home? Household models are convenient because they have a small weight and quite compact. Most manufacturers make an emphasis on a pleasant appearance and ergonomic design - any owner wants to have beautiful useful things in the house. However, such drills are better to use no longer 3-4 hours per day, making breaks at work every 15-20 minutes so as not to overheat the engine. Professional tools are designed for longer use. Usually they are much more powerful household. Food can from the network or from the battery. How to choose a battery drill We will tell a little later.

Missing people often confuse the concepts of a drill and a perforator. The perforators will usually mean by themselves a professional tool for large-scale work - crushing concrete walls, dismantling the old tile coating, etc. There are lungs and massive perforators. The first weigh 2-6.5 kg and have a capacity of 500-1000 W. The second is no longer so easy to keep in one hand - their weight is at least 7 kg, and often such models are equipped with a jackhammer function.

So, we can conclude that before choosing an electric drill, you need to decide on its purpose, based on this, set the desired power and speed of rotation, and additional functions are to your taste. If you need a tool for a small homemade workshop, a household drill is quite considered - there is no need to spend money on professional.

Classification of drill

Distinguish between ordinary and shock drills. The difference between them lies in the way of work - the drums in addition to the rotational movements does and progressive, that is, the head moves forward-back. This automatically increases productivity and allows you to interact with very solid materials. The usual drill is suitable only for working with wood and other soft materials (plywood, drywall, etc.). It is clear that the impact models are much universal, but it is for this reason that their cost is higher.

Types of drills by nature of application:

1. Corner - Such tools are needed to work in hard-to-reach places. They allow you to work in a close space, where we will not turn off with a regular drill, for example, if you need to make a hole at a right angle to the handle drill. All because the cartridge is attached to the "g"-shaped gearbox, that is, in the form of an angle, because of the same name. The angular drill is indispensable for the car repair, for example, if you need to wake under the hood.
   
2. Mixing - allow not only drilling holes, but also stir liquid and viscous building mixes (mastic, concrete, paint, etc.). Typically, the mixing drills do not shock function, so only soft materials can be drilled them.
   
3. Screwdrivers - created in order to make the holes for fasteners quickly and twist them bolts, screws, etc. Models are usually characterized by low power and compact size, from which we can conclude that this is the right tool for home use. Drill indispensable for collectors of furniture or for building a frame house.
   
4. Perforators - these drills have recently become extremely popular due to their versatility. Their main difference from ordinary tools is in a special structure of the gearbox. If you do not go into technical details, then the main operating mode of the perforator is the drum, in the drill is rotational, and the strike function acts as an additional and turns on if necessary. What shock drill to choose for home? It is better to refrain from such acquisition and limit the small "drilling" model. Perforators are classified as professional construction equipment and are intended for large-scale work with durable surfaces (wall strobs, dismantling of tile coating, old floors, etc.).
   

Autonomous drills

As we promised, it's time to tell about wireless models. If you do not know which drill to choose for the upcoming construction of the house on a nine clean plot, you will not think better battery. It allows you to be the most mobile and not depend on the availability of an electrical network. But in the case of large-scale construction, it is worth considering that the tool with autonomous food usually has a small power, so it is necessary to use it in a gentle mode. Of course, there are professional models specially designed for high loads. Usually, complete with a drill go at once two batteries - when one sits, you can be charged and work with the second.

It is useful to know: despite the fact that a drill working from the network may have a greater power than the rechargeable one, its motor is constantly at risk of brave from voltage drops.

Usually all battery drills are sold with charging devices, but not so long ago, models with mounted charging batteries appeared on the market. Popular more than 12-free batteries, but there are also 9.6 V batteries on sale, 14.4 V, 18 V. How to choose a drill for the home, and what battery for this will suit? The prevailing majority of European countries passed on nickel-metal-hydride batteries due to their environmental safety. In nickel-cadmium batteries, there is a powerful allergen - cadmium, however, they are using almost all domestic producers.

But the crucial value is not so much composition as the battery capacity. It is clear that what it is more, the longer you can work. Professional models, as we have already spoken, often come complete with two batteries - when one "sits", you can insert the second, and the first will restore the performance after 60 minutes. Domestic battery drills at the recharging takes at least 3 hours.

Also, when buying a battery drill, it is important to pay attention to the shape and arrangement of the handle. Classical copies of the handle are located behind and resemble a gun. Such is convenient to drill the walls and twist screws, but for a long time to hold the tool in one position is quite difficult due to the uncomfortable position of the nameless finger. It is much better in this respect of the handle placed in the center of the severity of the tool. Even with continuous work with such a drill, hands are tired much less, and at the same time does not suffer accuracy of work. For such tools, naturally horizontal position. If you buy a drill for heavy construction work, it is better to give preference to professional newest models with more precisely with acentrated handle with rough elastomeric surfaces.

RESULTS

We offer to summarize and paint, how to choose a good drill. First of all, decide why you need a tool - for work at home, in workshop or professional construction. Then - how exactly this work will flow. For example, if you need to often move with a drill or work in a non-electrified room, it is better to choose a wireless model.

When choosing a drill, consider the following:

1. The volume and duration of the session of operation with the drill determine the power of the device.
2. What materials are you going to work with? If with wood and plasterboard, it is not too powerful ordinary drill, if with concrete and brick - shock.
3. How to choose a shock drill? If the task is to drill solid materials, a normal powerful drill is suitable with the impact option. If you need to stick the walls, dismantle the tile, parquet or partition, it is better to take a perforator.
4. Find out what model the speed of rotation is more revolutions allows you to quickly do smooth holes. But if you want not only drilling, but also twist the fasteners, it is better to choose a drill with the possibility of controlling speed. For the "home" tool, this indicator is up to 3000 rpm.
5. Hold the drill in the hand to feel the weight and make sure that the tool is conveniently placed in the palm of the hand - the quality of work and your own comfort depends on it.
6. On the quality of the instrument, not only the drill itself is affected, but also its cable. Make sure it is strength and pick up the desired length.
7. Check out the manufacturer of technology. Many do not know which firm to choose a drill, and buy products of promoted brands. In the case of drills and perforators, it is better to act just like this in a hard way and give preference to "old-timers" of the construction market (Bosch, Stern).

We hope not to remind you that the purchased drill must have a guarantee (the longer, the better), instructions and all the necessary documents. We will be glad if this article helps you choose a quality tool for home or work.