For a man with hands drill is the most important instrument in the house. Fastening a screw quickly and reliably, hanging a picture, fixing furniture - all these small jobs without a drill are problematic to do. But drills are also different in shape, purpose, price and mass of other parameters.
A drill is a tool, electric or cordless, which is necessary for drilling holes in dense material: wood, stone, concrete, metal.
What drills are there
All drills are divided into household and professional... The principle of operation is the same for everyone. Differences in power, drill speed, hole diameter, service life and price. Specialized power tool centers will offer you semi-professional drills. These are transitional models. If they are domestic, then they have the properties inherent in the professional. If professional, then, on the contrary, devoid of any components, but excellent in quality and long-lived.
Which drill to choose depends on its purpose. You can buy a great powerful tool that can work for days and not break from heavy loads, keep it in a package, taking it out once a year to drill a hole for a screw to hang another photo in the kitchen. The rather large sum spent in such a case has been completely wasted. You can buy a small, lightweight tool and not let go of it, because repairs have become your job, but you often have to swear, indignant at a quickly out of order drill - also not an option.
For periodic, domestic work, it is still more appropriate to buy a household drill price she will not be shaken by the family's budget. And if the drill is used more than three to four times a year, it is worth purchasing a professional tool.
Drill types
The drill was invented a long time ago. It was originally hand made, i.e. the work of the drill directly depended on how much effort the master uses, turning the handle. The hand drill is now a thing of the past. The old models were replaced by electric and cordless drills. The first is powered by the mains, the second is on replaceable batteries. In general, the following types of drills are distinguished:
- perforator
- hammer drill
- conventional drill
- screwdriver (cordless drill)
The hammer drill is classified as a professional drill. It is a large, powerful, heavy tool for chipping walls and drilling holes in concrete, stone, brick, and chipping off excess material such as removing old tiles. The main job of a hammer drill is to hammer. It features high impact energy, large bore diameter, long service life and increased cost. It is a tool for construction professionals.
The hammer drill has characteristics slightly lower than the hammer drill, but also belongs to professional tools. It is used when drilling holes in stone, brick, concrete. The drill of such a drill is able to overcome such materials, since there are two ratchets inside it, which connect to each other during operation. One is inside the drill, the other is attached to the rotating chuck. When drilling, the drill with their help acquires the function of chiselling (or impact), which, by the way, can be turned off if there is no such need. Operates on mains and batteries. The hammer drill is easy to use, it is lighter than the hammer drill, and mainly winder drills are used to work with it. For the price, such a drill is almost two times cheaper than a hammer drill, but more expensive than a conventional drill.
An ordinary drill differs from a percussion drill in that it does not have an impact function, therefore, it cannot drill metal, concrete and brick, only wood. This is a household drill, which is good in a wooden house, in the country, for small work in a barn, garage, when assembling furniture. It can be electric or rechargeable. The first is convenient because it works for a long time, and the second can be carried over any distance and drilled where there are no electrical outlets at all.
The screwdriver is even simpler - a tool necessary for driving screws at a construction site, in repairs, in assembling furniture. It's not really a drill, but it works on the same principle of rotating mechanisms. This is a cordless tool.
An economic man and prone to frequent repairs prefers to have a drill and a screwdriver in the house, since the tasks of these tools differ.
Where to buy a drill
If we usually buy a fashionable coat in a store, and fresh meat in the market, then with a drill it is more difficult. The drill can be purchased at a hardware store, power tools, supermarkets, and off-hand. Each option has its own pros and cons.
Buying from hands, that is, acquiring a tool that has already been used, has a positive price and an owner who knows the principle of operation and all the parameters (for reference). Minus - there is no guarantee for the instrument. If such a drill was in the package and was used 2-3 times, it will serve you faithfully for a long time. But a tool that has worked every day for a long time, has spent its entire margin of safety or was lying in a damp, cold garage, shed, will quickly break down and its price, even a small one, will not justify.
Hypermarkets and household goods stores provide serviceability and quality assurance, but here you will not achieve competent instructions and practical advice on choosing a brand or model. In such stores, the goal of the seller is to sell the goods, and these sellers themselves are far from professionals in the construction business. And you can't guess the price.
A good drill, which is just for you, according to your requirements and needs, is in small electrical stores. As a rule, the managers here are competent people, they will not give bad advice. True, there is also a minus: often the suppliers of these stores are certain firms, so the choice of brand here is limited to two or three names. But there is a quality guarantee, and you will learn the characteristics of the tool from professionals.
Drill bits
The rotating mechanism of a drill is often used not only for drilling, but also in other areas, sometimes very far from construction and repair. There are special drill bitswho do a wide variety of jobs. They clean the surfaces of building materials, grind, polish, mix solutions, even cut out the necessary parts as a jigsaw.
Professional attachments:
- stops (nozzles that keep the angle and depth of drilling)
- sawdust blower
- accessories for mini drills (collet chuck)
Nozzles for other purposes:
- circular cutters (for cutting circles from plywood, hardboard and other materials)
- petal attachment for grinding
- surface grinding (often rubber) attachment
- felt attachment for grinding and polishing
- bits of different properties for screwdriving (angular, tetrahedral, magnetized, cruciform)
- for plucking a bird (significantly facilitate the work of a poultry farmer):
Existing drill brands
In the market for construction products, there is a competition between manufacturers for their customers. A drill, especially if it is a professional tool, tends to fail. The cost of repairs, the ability to purchase spare parts and the term of work affect consumer opinion, therefore competing brands are constantly improving their tools so as not to lose leadership positions.
In terms of cost and feature set, the most expensive are professional drills from Metabo, HILTIand DeWalt... They cost about 2,500 to several tens of thousands of rubles. But they also deserve their money - reliable, strong, functional, durable, absolutely irreplaceable tools for the master.
The majority of firms are focused on the production of good tools, but with fewer capabilities and slightly less expensive, costing from 2 to 6 thousand rubles, but impeccable in quality and working time. This market segment includes drill Bosch (one of the most beloved firms in the construction business, many specialists try to purchase other tools from the same manufacturer). Thus, the GBM 6 RE Professional is designed for drilling small holes, while the GBM 32-4 Professional is distinguished by its performance, has four speeds and is very reliable even under heavy loads.
Another notable brand is Makita drill,it is percussion, made for specialists. Most of the drills of this brand have a metal body and double protective motor insulation. This guarantees a decent working life. There are also two types of chucks, keyless and serrated, which undoubtedly expands its application.
And, of course, Japanese quality exists not only in cars, but also in power tools. Excellent drill Hitachi - the object of desire of many craftsmen - it differs both in properties and in the graceful shape of even a heavy instrument. Ergonomics, compactness, light weight, reliability - that's all about it. The drill motor is a special one, invented and patented by this company.
Much more affordable shock drill Skill... This brand just like the impact drill Spark, less promoted, but not bad in its properties. Usually they are purchased for housework and repairs in an apartment, in a country house. They cost about 1500-2000 rubles. Minus in the cost and availability of parts - if the drill breaks down, it is cheaper to buy a new one than to repair it.
All this ranking is rather arbitrary, because each instrument is like an extension of the hand of the master, and each master has his own hand. One likes hitachi the most, while the other has many years of work. drill interskol, lightweight, handy tool, with a rubber pad, good equipment and excellent performance.
I would like to drill a wall and hang a shelf, advise which drill to choose for this? We think that users will agree with the argument that this is often how the question is formulated when it comes to buying such an irreplaceable tool in construction as a drill.
Where to start your choice? Indeed, one master needs a drill in order to drill a couple of holes in a folded wall, and another to correct mistakes in.
As practice shows, the choice of the tool directly depends on the type of work. And before you go to the store for a purchase, you need to understand what a drill can do?
A modern drill is a multifunctional power tool, with which you can perform a huge range of different jobs - drilling holes in wood, metal, brick and concrete. And the use of special attachments allows you to significantly expand the scope of this tool - from stirring solutions and ending with grinding work.
If you urgently need a wood splitter, yamobur or concrete mixer, then explains in detail how to make them yourself.
The main types of electric drills are:
- Hammer drill. In addition to the usual rotary motion, this drill can perform reciprocating movements - forward and backward, which is necessary when drilling such strong materials as concrete or brick.
When working with wood, plastics and metal, this function must be disabled.
- Cordless drills... Allows you to work in hard-to-reach places where access to an electrical outlet is difficult.
Such drills are of considerable weight and b abouthigher cost.
- Perforators.They are primarily intended for drilling in concrete. The main difference between a hammer drill and an impact drill is the impact force. For a hammer drill, even for the weakest, this value is at least 1.5 J, while for an impact drill this figure does not exceed 0.5 J.
It should be remembered that the hammer drill is not designed for continuous operation with the hammering function enabled, as this leads to premature wear of the mechanism and damage to the drill.
But what else do you need to know when choosing a drill? Opinion of a user of our forum Python24:
- Drills, like any other power tool, are professional and household. The two main differences between a professional tool and a household one are:
- Mode of operation.
- Product resource.
For example, a drill can be operated in an in-line production, where the same operation will be performed for many hours. For such work, a professional drill is required, which ensures a long service life and high labor productivity.
The same can be said about drills, which are constantly used in professional construction, for example, private or apartment buildings.
Python24 :
- Household tools cannot be used in this mode. And a single start of the drill should not exceed 5-7 minutes, while any power tool with a collector motor does not like long-term "vnatyag" work.
Pressing harder on the tool can lead to premature wear and breakage.
When choosing a drill, you need to know about how to mount the drill in the chuck. The cartridge design is of two types:
- Cam clamp. In such a chuck, the tool is fixed with a special turning key, which ensures reliable fastening of the drill.
To prevent the key from being lost, a special cutout is provided in the electric cord of the drill.
- Keyless chuck.Allows you to carry out a quick change of tools, as they say, with one hand effort.
The main disadvantage of the keyless chuck – When drilling in heavy materials such as concrete, fine abrasive dust or insufficient tightening torque may cause the drill to rotate in the chuck. And when buying a drill with such a chuck, you should give preference to a metal keyless chuck.
You should pay attention to the presence of such functions as the drill:
- Rotation speed controller. Allows you to smoothly change the rotation speed, which allows you to use the drill as a screwdriver.
- Reverse. With its help, you can change the direction of rotation, which is especially important if the drill is used as a screwdriver or it becomes necessary to pull out a drill stuck in it from the drilled hole.
- Depth gauge. Special strip with markings installed parallel to the chuck. The depth gauge can be used to monitor the drilling depth.
As for the power of the drill, our forum member Managbelieves that a drill with a capacity of about 500 watts is sufficient for domestic needs. The opinion of another user (nickname on the forum Spdim) :
- Power depends on which house you live in and what you are going to drill - concrete, drywall or wood. To be honest, in my apartment I prefer to have a light hammer drill with a power of about 1 kW with an adapter for ordinary drills and a powerful screwdriver. At the dacha, the picture is different. There you need a good drill and a heavy hammer drill and a screwdriver.
Python24 :
- Often people are mistaken, preferring, for example, a low-speed, low-speed drill for household use, a low-power, resourceful, and professional one for the same money. Explaining by the fact that once you bought a professional drill, it is more reliable and will last longer. But if at low speeds you start to stir the solution for tiles with such a drill or drill metal, then in those modes where a kilowatt drill would work in such modes for many years, a low-power drill will wear out faster, which will ultimately lead to its breakdown.
The simplest drills of 3000 rpm and a power of 250-500 W, with a speed control, a reverse, and an impact mechanism, in most cases are suitable only for drilling small holes in wood and plastic. All other functions should be used with great restrictions. That is why drills with a power of 500 to 1000 W should be considered the most versatile.
Additional factors that affect the quality and functionality of the product: 
- Side handle. Allows you to hold the drill with two hands, which greatly facilitates the work.
- The presence of two speeds in the drill. With this function, you can switch the speed from high to low, which expands the functionality of the drill, allowing it to be used as a mixer for stirring solutions.
- Metal gear housing - cools the drill mechanism more efficiently than made of plastic.
Summing up, we can say that when choosing a drill, first of all, you should focus on the scope of its application. And where you can get by with a simple and low-power model, you should not use a heavy professional drill. And ideally - for each type of work you should use your own type of tool!
To learn more about how to choose a drill, users can visit our forum. How to choose a puncher is described. And this video clearly tells what functions you need to pay attention to first when choosing a drill. The forum users are leading a heated discussion on how to choose a circular saw.
Drill - a tool focused on performing a whole range of tasks. Drilling holes, tightening nuts, mixing liquids of different consistencies are just a small part of the work that can be entrusted to him without fear. That is why the question of which impact drill to choose worries all those who are used to relying solely on their own experience and knowledge in carrying out repair and finishing work. So what should you consider when purchasing this indispensable assistant?
Impact drill: benefits
The construction market today offers a large selection of electric drills. Drill-screwdriver, angle, drill-mixer, drill-perforator ... It is not difficult to get lost in such a variety. However, the hammer drill, which is the main object of this article, compares favorably with the listed samples. Than? Let's figure it out.
Hammer drill - the device is universal. The main difference is the special movement mechanism of the drill, which performs not only rotational, but also reciprocating movements. This advantage of the hammer drill mechanism allows you to work with any materials: wood, metal, plastic, brick, concrete.
But this is not the only plus. The best impact drills are high-powered devices used to:
- threading in metal;
- screwing in and out of screws;
- drilling in wood, metal, natural stone;
- making holes in concrete and brick.
How to choose an impact drill?
Choosing a hammer drill that will honorably fulfill the tasks assigned to it presupposes, first of all, the presence of theoretical knowledge. You cannot choose a tool without knowing what elements it consists of.
The heart of the drill is engine... The power can vary from 400 to 1500 watts.
It is important!
The power of the two-speed models is over 700 W.
A wide range of motors provides an opportunity to choose the best option for each. It is also pleasing that brand manufacturers have put on stream the production of compact but efficient engines.
Impact drills are supplied reducer(one or two speed). The second, of course, is better, because it has a higher torque limit. Please note that the higher the numerical value of the gearbox, the easier it will be for the engine to work with ring picks and screws. High-speed copies have a small torque limit, although during homework this minor minus will not bring inconvenience.
The "Start" button is designed to adjust the speed. It is impossible to change the set parameters during operation - the regulator (wheel) is aligned with the switch. On the bottom left, there is usually a speed switch, on the top there is a kick function switch. The handle of a quality drill is equipped with rubber pads that reduce vibration and increase comfort when using the device.
Reverse rotation option (reverse)is available in almost every modern model. It is necessary for wedging the drill and unscrewing the screws. Another useful feature is overload protection... For example, if the drill unexpectedly jams, the safety mechanism will stop the tool and protect the gearbox and motor from failure.
Sometimes an impact drill is supplemented quick-clamping or toothed chuck... You will not need additional devices to fix the first one, but you cannot do without a special key when securing the second one. Of no small importance is length of cable... Too long will confuse and interfere, too short will hamper movement. The best option is 4 meters.
So, a general idea of \u200b\u200bhow an impact drill works has been obtained, which means that you can proceed to an overview of popular models.
Characteristics of the most popular models
There are so many models of multifunctional drills that even "advanced" builders will involuntarily think about the question - which hammer drill is better? The merits of a particular brand - below.
Impact drill Bosch
Rated power - 1010 W. They are supplied with keyless chucks, have a reverse, a choice of the number of revolutions. Electronic control. Particularly interesting is the GSB 13 RE drill - an excellent professional model characterized by light weight and precision. The drill change process is simplified with one hand movement, and the Precise Drill Start option eliminates the need for punching. The number of revolutions is set using the adjusting wheel. The comfortable grip makes work easy, fast and comfortable.
Impact drill Makita
No less demanded solution of diverse tasks. Masterly copes with drilling holes in metal, concrete, stone. The rotation speed is set by a switch equipped with a lock button. The well-thought-out design of the reverse not only helps to quickly change the direction of rotation, but also extends the service life of the device by 2 times. The side handle can be locked in any position. Complemented with a depth meter.
Impact drill Interscope
It has a lot of advantages. One of the main things is acceptable cost. The average price range is $ 90. The power consumption of the tool with a key chuck is up to 1000 W, weighs a little more than 2 kg and makes about 2500 revolutions at idle. Drilling diameter - 16-40 mm (depending on material characteristics).
Drills DeWALT
A large system of service options and high reliability make the impact drills of this manufacturer suitable for long-term work. The cable length is 4 meters. The side handle can be rotated 360 degrees. The two-speed gearbox is tuned for quiet and smooth drilling. The high torque will make it easier to loosen stuck screws and bolts. The developers even took into account the size of the trigger - it is enlarged, which makes it easier to press with two fingers, as well as work with thick gloves.
Hitachi Impact Drill
Electric drills from a Japanese manufacturer are recognized for their high quality workmanship. The main advantages are enviable performance, comfortable design, durable body and excellent technical characteristics. In short, if you are looking for a time-tested assistant, then Hitaci drills are what you need.
Drills ProTool
General properties: cast body, well thought-out shape, additional handle, screwing and centering devices. Almost every model is equipped with a slip clutch. The delivery set includes a convenient case for storage and transportation.
First of all, you should decide on the scope of tasks for which the tool is purchased. Pay close attention to the main characteristics. High RPM units make clean, neat holes.
It is important!
For domestic use, a drill that makes up to 2900 rpm is enough.
Don't overlook the issue of ergonomics and vibration protection. The battery must be capacious, because the operating time depends on it. Many professional drills come with two batteries: one is working, the other is charging. If it takes from 3 to 7 hours to recharge a household model, then a professional drill will be ready for work in a maximum of an hour.
Now you know what criteria to focus on when choosing an impact drill, which means that you can easily purchase a good, high-quality device for all occasions.
How to choose a drill: video