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Concrete has a very high density, which meets the requirements for materials for the construction of walls and ceilings. It can be problematic to hang a shelf or other heavy structure on such a wall. However, there are special screws for concrete walls and partitions. They are suitable for different types of structures and are easy to use.
How to drill timber for dowels: review of low-speed drills
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During construction, when working with wooden beams, special attention is paid to the connecting part of the crowns. As practice shows, changes in air temperature and water can change the shape of wood, even when dried according to all the rules. The use of dowels, which tightly fasten the structural elements together, will help to avoid this. But how can you make the necessary holes?
Types of dowels for concrete
Head shape
- Secret . A flat head that allows you to tighten the screw deep into the structure without leaving a bulge on the surface. The head has cross-shaped slots. There are notches for countersinking.
- Rectangular . They are shaped like a hook. May be rounded.
- Hexagonal . The thread is located inside with a cross-shaped slot. For these types, open-end and ring wrenches are used.
- Hairpin . There is a nut threaded fitting.
The type of head affects the way the dowel is screwed into a concrete wall. A screw with a hook or a pin can only be mounted with a pre-drilled hole. Other types can be screwed directly into the wall.
Coverage type
Blacked out . Black self-tapping screws with oxidized coating. For use only in rooms with normal humidity. It is not used on the street or in basements.- Copper-plated . Yellow color. Sensitive to various influences. Used only for indoor work.
- Galvanized . Silver color. Can be used indoors and outdoors. They do not collapse or deform.
The dowel is used where other fastening is impossible: the base is too fragile, or installation causes certain difficulties.
How to choose a low-speed drill
Among the variety of presented functionality, first of all you should pay attention to the power of the electric tool. The final capabilities of the drill depend on this parameter. For serious construction work, choose a drill with a power of at least 1500 W. If we are talking about minor repairs, you can get by with a simple drilling option with a power of 700-1000 W.
A particular advantage is the so-called mixer drill, which combines the functions of mixing construction mixtures and making holes. This is a fairly powerful tool, equipped with modern electronics, which provides:
A set of accessories for work is supplied with the drill. Each of the spindles included in the set has a characteristic thread. Shaft manufacturing companies take into account the features of spindle fixation when producing products.
What is a concrete dowel?
Such screws are most often used for fastening heavy structures - frames, door jambs, cabinets, shelves, fences, heating radiators and other communications. The screw is held tightly due to the uneven two-start thread and notches along its entire length. This shape ensures reliable fixation even in a concrete wall. On the head of the screw there are notches for countersinking.
The dowel for concrete looks like an elongated self-tapping screw with a thread in the center. On one side there is a head with a hexagonal groove, on the other side there is a sharp end. They are made from carbon steel with a protective galvanized or anodized coating, which provides protection against corrosion and other influences. For screwing, TORX T30 bits are used.
The fasteners can be reused, which is a great advantage for temporary structures. They are chosen for their low price, resistance to moisture and stress, and reliable fixation of objects, regardless of the material.
Major manufacturers of low-speed drills
The quality of the instrument depends on the reputation of the manufacturer. Experienced craftsmen identify a number of models that deserve attention.
Makita
A brand from Japan, specializing in the production of electric tools, has gained worldwide trust due to the quality of its products. Among the variety of drills from this company, the unit model 6300-4 is popular. The specimen is suitable for high-quality work by experienced craftsmen. The price is within 14.5 thousand rubles. The tool allows you to perform all popular tasks, including preparing solutions.
Felisatti
The Italian manufacturer, whose brand produces everything needed for construction work, also produces low-speed drills. The professionals appreciated the professionalism of the Italians, choosing the DMF23/1150VSE device among popular models.
Metabo
Among countries producing power tools, Germany ranks high, distinguished by reliable and high-quality products. Metabo produces drills that any DIYer will appreciate. However, the high cost of the devices deters non-professional construction workers from purchasing them. Thus, the price of the common B32/3 drill model is 59 thousand rubles. Not everyone can afford to work with an expensive tool.
Russia
If, when choosing a manufacturer, the question is about saving money, you should pay attention to Russian brands. The efficiency of Interskol or ZUBR tools is at the level of foreign competitors. The availability of products from domestic companies forces craftsmen to make a choice in their favor.
Rating of high-quality hammerless low-speed drills
Rebir IE 1206-1-16/2000 ER 07.001.00008
This model is designed to work with plastic, non-ferrous metals, wood and steel. It is based on the use of a powerful engine, due to which the design is characterized by a high performance coefficient. It is possible to adjust the rotation speed, which will allow you to configure the device for a specific material. The body is made of aluminum, which has a beneficial effect on the weight of the structure. The declared power is 2 kW. A key chuck is installed and its maximum size is 16mm. Works at one speed. Backlighting is not provided by the manufacturer. Dimensions: 410x280x110 mm. Weight 5.6 kg. Spindle speed – 0-330 rpm.
How much does the model cost? The purchase will cost 12,819 rubles.
Rebir IE 1206-1-16/2000 ER 07.001.00008
Advantages:
- there is a reverse option;
- speed adjustment;
- branded cable length 195 cm;
- three-layer reducer;
- the handle is equipped with a soft coating;
- possibility of installation in a stationary position;
- locking button for continuous operation;
- ergonomic handle with soft grip.
Flaws:
- high price.
Sturm ID20165M
This low-speed model will be an excellent solution for performing complex (heavy) tasks. Designed to work with building compounds, plastic, metal, and wood. The presence of a spindle with a Morse taper, which is responsible for transmitting high torque, deserves special attention. You can also use a rig with a tapered tail. Three ergonomic handles provide improved control over the process. The metal-type gearbox does an excellent job of removing excess heat. The stated power factor is 1950 W. A key type of chuck is used.
Average price – 9480 rub.
Sturm ID20165M
Advantages:
- speed control function;
- ergonomic handles;
- presence of reverse;
- long cable;
- self-replacement of brushes.
Flaws:
- no constant speed support.
Rebir UM2-16/1200ER 07.001.00016
This tool is designed to work with plastic, steel and wood. There is an option to adjust the speed, which will allow you to choose the most comfortable options based on the situation. It is based on the use of a three-stage gearbox, which is placed in a metal case. This aspect has a beneficial effect on the service life of the product. Removing the drill from the hole is not difficult. Claimed power: 1200 W. The key type of cartridge is used.
You can purchase the tool at a price of 5,999 rubles.
Rebir UM2-16/1200ER 07.001.00016
Advantages:
- there is the possibility of adjusting the speed;
- reverse option;
- long cable;
- engine power;
- locking button;
- three-stage gearbox;
- presence of side handles.
Flaws:
- no constant speed support.
DIOLD MES-5-03
This fairly powerful tool is characterized by its light weight. Impactless drill with a power of 800 W. Weight – 1.9 kg, which allows you to work with the tool for a long time without the risk of excessive fatigue. A key chuck is used, thereby eliminating the risk of it slipping during operation. The delivery set includes an auxiliary handle and a limiter. Spare brushes are also available. Can be used in screwdriver mode due to the installed reverse.
Average price – 3659 rubles.
DIOLD MES-5-03
Advantages:
- equipment;
- ergonomic handle;
- light weight;
- reverse option;
- functionality;
- performance;
- practicality;
- build quality and metal elements.
Flaws:
- not identified.
Techniques for drilling holes in wood
At the preliminary stage, the surface should be countersinked. The essence of the procedure is to make a small recess according to the dimensions of the head of the fastener at the site of subsequent drilling. Then the main drilling is carried out using equipment of a nominal mounting diameter. If you plan to use dowels, then drilling is carried out without preliminary countersinking. If there is no need to drill through the workpiece, then use a feather drill. It is designed to organize a tenon joint and can be equipped with a built-in drilling depth limiter.
To preserve the structure of the wood when drilling large holes, annular cutters and feather drills are used. Unlike cylindrical drills, they practically do not create chips on a wooden surface.
Drilling with feather drills
Place a feather drill in the intended location and use the drill at low power. The process continues until the master sees the end of the tool from the back of the block. To eliminate chips in the hole area, drilling is then used from the opposite edge. The workpiece is turned over in the desired direction, fixed and drilled, installing the drill in the hole already made.
Drilling with an annular cutter
In situations where it is necessary to make a hole whose radius exceeds 19 mm, annular cutters are used. The design of the device includes a small drill that guides the drill during operation. As a result, the hole is drilled in the intended location.
Screw drills
Often you have to use a drill when drilling fairly thick pieces of wood or logs. The diameter of the holes also remains large. In this case, a screw drill is used, working with which does not cause difficulties. The device is chosen in situations where holes are to be drilled passing through several logs.
Screw drills are a suitable option because:
Drill for drilling timber for dowels (dowels)
When building a house from timber, among the tools there must be a drill for drilling timber for dowels. Without it, it is simply impossible to build a strong, unshakable wall.
- 1 Features of construction from timber
- 2 How to fasten timber
Features of timber construction
If logs are used in wooden construction, their position relative to each other is fixed by grooves. Groove - a notch selected along the entire length of the log. With this groove, the upper log seems to cover the lower one and thereby creates immobility of the logs. But timber with smooth edges must have additional clamps.
Construction from timber has a number of advantages. The wall remains flat, which is very convenient for subsequent finishing. The thickness of timber walls will be the same everywhere, unlike log walls. A house or bathhouse is built directly on the foundation, that is, there is no such additional problem as transporting and installing a log house made elsewhere. But the issue of fastening the timber to the wall must be taken extremely seriously. The strength of the structure depends on this.
Some would-be craftsmen solve this problem simply by using nails, staples and similar gadgets. It is strictly not recommended to do this! Wood is a living material. It is subject to drying out and shrinks. A nail firmly driven into 2 beams prevents this shrinkage, and 1 beam seems to hang over the other, forming a gap. A wall with cracks is not a wall, since heat escapes, but frost, on the contrary, sneaks into the house.
To prevent this from happening, it would be correct to drill holes for dowels in the timber. A dowel is a wooden rod with chamfers. It is made from hardwood such as birch.
A large dowel that replaces a nail is often called a dowel. Both names are correct and mean the same thing. The dowel can be either homemade or industrially produced. Recently, it has become convenient to use rake handles for dowels, which are sold in every hardware store. This is due to the successful correspondence of the diameter of such a handle, 25 mm, with the diameter of the wood drill. The size of 25 mm is optimal for fastening timber 150x150 mm, which is usually used in construction.
How to fasten timber
In order to work with timber easily and without problems, the optimal solution would be to buy a twist drill. Its design is such that it fits into the wood with the effect of a self-tapping screw, without the need to put pressure on the drill. The price of such a drill is higher than a feather drill, but the quality of the hole is worth the cost.
The edges are not torn, there is no axial deviation, the diameter is strictly the same throughout the entire depth. The length of the drill must exceed the thickness of the timber by at least one and a half times. This will make it possible to drill 1 beam through, and the second halfway. You must follow a simple rule: the holes for the dowels should be 2-3 cm larger than the dowels themselves.
Thanks to this, when the wood dries out, there will be a headroom and the beam will not hang.
The drill for drilling holes for dowels must be powerful enough. Experience shows that when using a 25 mm twist drill, holes in pine beams can be easily handled by a drill with a power of 800 W. True, we mean a low-speed drill.
The fact is that power is proportional to the number of revolutions and torque, which means that the more one, the less the other. When drilling large holes, torque is much more important than speed. Therefore, a low-speed drill is more suitable for such work. In this regard, when choosing a drill, you should pay attention to its reduction gearbox.
It is advisable to use a tool that has several speeds. At first speed the torque will be maximum.
How to drill a hole? There are several technologies. You can do them when trying on timber, after all plumb lines, levels, and dimensions have been checked. After this, the beam is removed. Batting, jute or other similar material is laid. The spaces above the holes are cleared in advance.
The beam is laid in place and dowels are inserted into it. They can be knocked out, but the impact force should be small. Otherwise, the dowel will either break or it will not match the diameter of the hole made.
A dowel driven too tightly will prevent the timber from shrinking when it dries.
Some use a different sequence. The timber is laid directly on the batting, leveled, and then drilled. This allows you not to remove it from the wall again. But this method also has its drawbacks. The quality of batting, linen and jute sold in stores varies.
They often contain long fibers that, once under the drill, begin to collect the batting and wrap it around the drill. This entails a number of problems. The drill gets hot and loses its technological properties, so turning it out even using reverse is not so easy. The drill for drilling timber for dowels is overloaded and may fail.
Not to mention the fact that in this case you will still have to remove the timber in order to restore the batting layer.
Technologies are different, often they have to be changed due to the characteristics of the materials used. But it is necessary to follow 2 rules in any case: the diameter of the dowel and the holes for it must correspond to each other, and the drill must be low-speed and powerful.
Source: https://infobrus.ru/obr-drev/derevoobrabatyvayuschie/drel-dlya-sverleniya-brusa-pod-nageli.html
Video description
Circular drill
Masters call this device a ballerina, since the principle of operation of the drill resembles the movements of a dancer. The cutting element consists of a central drill and additional cutters located on a common axis. The position of the cuts can be changed, thereby adjusting the diameter of the future hole. The circular drill set includes a punch intended for marking and a hexagon required for fixing the drills.
A cutting element of this type is chosen in the following situations:
Drilling with a circular element is best done with a low power drill, since there is a high probability of damage to the device.
Drill for dowel: is it necessary?
Before screwing the mount into the concrete wall, you must drill a hole. To do this, use a drill with a diameter of 6 mm. The width and length of the hole should be 15-20% smaller than the dowel itself. If you use an electric drill in drilling mode, then a universal or special concrete drill will do.
When using an impact drill or hammer drill, a drill is used that has grooves located on a cylindrical surface. For expanded clay concrete, foam or aerated concrete, there is no need to drill a preliminary hole. This is done in order to create full contact between the screw and the concrete.
TOP-best low-speed drills and screwdrivers
BLACK+DECKER BDCD12
This low-power tool spins the drill up to 550 rpm. An electric hammerless drill can be used as a screwdriver and for minor repair work. To do this you will need an auxiliary set of bits and an adapter. The weight is light, as are the dimensions of the device. It is convenient to work with due to the absence of wires. It will take 8 hours to replenish the charge. The reviews are positive. Marriage items are not available for sale.
How much does the tool cost? The purchase will cost 4569 rubles.
BLACK+DECKER BDCD12
Advantages:
- smooth speed control;
- no wires;
- mobility;
- optimal power;
- maintainability;
- build quality.
Flaws:
- not identified.
PATRIOT BR104Li The One 180201412
This battery model is in high demand among domestic consumers, largely due to its compact size and mobility. An excellent solution for those who carry out minor repair work away from the network. A quick-release chuck is installed that can be replaced independently. The handle has a rubberized coating, which guarantees the most comfortable operating process. A battery characterized by the absence of memory effect and self-discharge is used as a power source. It is based on the use of a brush motor. The instrument comes with a branded case. There is a spindle lock option. Two batteries are responsible for the operating time.
Cost – 3540 rub.
PATRIOT BR104Li The One 180201412
Advantages:
- reverse option;
- presence of backlight;
- speed adjustment;
- spindle lock function;
- battery;
- ergonomic handle;
- build quality.
Flaws:
- not identified.
DAEWOO DAA 1210 Li
This cordless tool is an excellent solution for carrying out minor repairs away from the mains. It is based on the use of a quick-release chuck, which allows you to quickly and easily replace equipment. There are 19 stages of torque, which is adjusted automatically. The LED backlight deserves special attention, which will allow you to work in hard-to-reach areas and in conditions of poor visibility. It should also be noted that there is a light indicator that shows the current battery charge. Brush motor installed. The battery is protected from overheating and overcharging. The housing has no play.
Average price – 2690 rub.
DAEWOO DAA 1210 Li
Advantages:
- reverse function;
- presence of backlight;
- mobility;
- ergonomic handle;
- charge level indicator;
- engine brake;
- protection of the system from overload and short circuit;
- electronic speed control.
Flaws:
- not identified.
DEKO Banger 12V SET 1 063-4129
This cordless tool is characterized by its compact size. An excellent choice for those who plan to work with fasteners, metal and wood. Removing the nozzle from the hole is not difficult due to the presence of a reverse option. The built-in battery has no self-discharge effect and no memory effect. A brush type motor is installed. The device is equipped with a quick-release chuck. There is a built-in flashlight that allows you to work in low light conditions. It is very easy to find new parts on the model of this brand, which makes the tool repairable.
Cost – 1469 rubles.
DEKO Banger 12V SET 1 063-4129
Advantages:
- reverse option;
- presence of backlight;
- built-in battery;
- speed adjustment;
- build quality;
- value for money;
- practicality;
- functionality;
- ease of use;
- wear resistance;
- manufacturer's warranty.
Flaws:
- not identified.
Voting for the best drilling tool for the dacha
Which drilling tool would you choose or recommend?
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8.51 % ( 8 )
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11.70 % ( 11 )
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19.15 % ( 18 )
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1.06 % ( 1 )
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CALIBER NSHU-200/ZEM
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Types of drills
There are two types of tools:
- disk. The product is equipped with two semicircular blades, which are placed one above the other. To drill a hole with such a drill, the operator moves it back and forth;
Disc drill - screw It uses a solid blade that is wound around a base. To drill with this drill, you need to move clockwise.
Auger drills
