Key with different heads. Wrenches and sockets

There are more than 250 types of sockets and tool wrenches in the OBI hypermarket catalog. Products are sold individually and in ready-made sets at a price of 45 to 10,000 rubles per heading.

Features of choice

When buying products from this subcategory, the following nuances are taken into account:

. Manufacturing material.
. Design features.
. Size.

For the manufacture of quality tool using hardened carbon steel. This material is characterized by high resistance to moisture and strength. In addition to piece items, there are sets of several dozen devices with a hard carrying case.

By design features Distinguish between products with a ratchet and adjustable mechanism, horn and end tools. Products with a T-handle and an extended working part are designed for tightening bolts in hard-to-reach places Oh. Torque samples are also commercially available with a special device for controlling the tightening force of the nuts. Key sizes are indicated in millimeters or inches according to generally accepted international standards.

Order in the OBI store manual locksmith tools for home and industrial needs using your phone.

Payment and delivery methods

Purchase goods online with delivery

. You can pay for the order in cash or by bank transfer.
. You will coordinate the date and time of delivery with the operator by phone when confirming the order.
. The terms of the free service depend on the city, amount and weight of the product.
. Unloading goods, lifting and transferring are additional services and may be paid separately, check with the store operator.

Detailed information about the intervals and zones by city, the conditions for unloading and lifting the order are located, where you can independently calculate the cost of your delivery in advance, indicating the postal address and parameters for unloading.

Order and collect yourself where it is convenient for you

. When filling out the order form, indicate a convenient date and time for you to visit the hypermarket.
. You can pay for the purchase in cash or by bank transfer at the cash desks of the store.

Purchased goods can be picked up at any of the OBI stores in Moscow, St. Petersburg, Ryazan, Volgograd, Nizhny Novgorod, Saratov, Kazan, Yekaterinburg, Omsk, Krasnodar, Surgut, Bryansk, Tula and Volzhsky.

There are several types of wrenches. They are used for tight fastening of joints, including a bolt and a nut. They are made from an alloy of chromium and vanadium. In order to prevent rusting of the key, chrome plating is used.

The first key was created by Solimon Merrico, who patented it back in 1835. There are many varieties of keys, all of them are very necessary for a person for construction and repair work in everyday life.

Purpose of wrenches

If you carefully consider the types of devices in the photo, you can understand that in addition to the models found in our homes, there are many more variations of them. They differ from each other not only in form, but also in the purpose of application..

For example, a fire hydrant wrench is used for only one purpose. While the rest, say, combined or adjustable tools, can be used for various areas.

Such a variety of devices is necessary to ensure comfort in work, not only professional specialists but also in the lives of ordinary citizens.

A properly designed tool helps to quickly complete the repair task assigned to a person.

Types of keys

The size is usually indicated by parameters such as the distance between the jaws.. In the 19th century and early 20th century, the nominal size of the tool was most often determined by following the general parameters of the thread it created. In modern practice, there are designations based on the total distance between two planes.

Dimensions should be considered according to such indicators as the mouth (distance from one sponge to another), thread parameter (nuts), handle length. The next parameter carries a distance from 3.2 mm to 155 mm, the second from M1.6 to M 110; and the third - from 150 millimeters to 500.

Open-end wrenches one and two-sided

These keys have open ends.. Their hole is presented in the form of a U. Most often they are different in size. Such products should be used when working with nuts and bolts, which are very difficult to access. They give a lot of room during unscrewing.

Double ended ring wrenches

The device is wrapped type at two ends has a closed circuit. The product is most often used for nuts or bolts. hexagonal shape. But in some cases it can be created in the shape of a square. The loops at both ends are the same size. Products of this type are used when open models cannot perform their task.

combination keys

Combined appliances, as their name implies, are presented in the form of a combination of a box model and an open-end wrench. They possess closed loop at one end and open at the other. The wrench can be used to loosen bolts and nuts, and then quickly remove them with the open end.

Combined types of keys are most often used to perform combinations, as a result of which both rings acquire the same diameter.

Adjustable and adjustable wrenches

Such products are presented open type. They are applied only from one end. Overall size holes were not fixed. It may vary depending on the bolt or nut. But these types of wrenches are almost impossible to use in hard-to-reach areas.

This type of adjustable key is by far the most commonly used. The adjustable end device differs from the usual one in that the gripping surfaces of the jaws in it are shifted 15 degrees to the side with respect to the handle of the device. The modern adjustable socket wrench was created by Johan Peter Johansson.

Now you need to consider how to use an adjustable product:

Decide on the nut or bolt you want to fasten.
Open the rotary key while turning the screw. Check if you have opened it well so that the nut can fit completely into it: if not, it should be opened more. Make sure it is open a little more than the size of the nut or bolt itself.
Slide the free part of the tool head onto the nut while holding it in place. Rotate the screw mechanism so that it can grip the nut tightly.
Turn the device clockwise to tighten the screw more tightly, or counterclockwise to loosen it considerably. Continue turning until the nut is tight or loose enough to be removed.
Release the device and loosen the mechanism screw.

End models

It is customary to put the end device completely on a bolt or nut. When this kind of wrench is used, it does not need to be completely removed from the head of the nut or bolt after the turn is completed. The handles can be removed and re-inserted while the socket remains above the bolt.

Adjustable device, the main disadvantages:

Relatively big size, can become a significant obstacle when working in hard-to-reach places.
The backlash of the movable jaw does not allow the nut to be tightly compressed, ultimately, with a little effort, the wrench smoothes the corners of the nut and breaks off, at which time a person can get a significant injury.
Over time, the mechanism of the movable sponge wears out a lot, leading to a strong backlash.
The low strength index does not allow to create a large and twisting moment.
The need to adjust the position of the movable sponge.

The only advantage is the ability to change the distance between the jaws. But even this advantage can be negated with a socket wrench with interchangeable or bicycle heads.

Impact wrench

Types and sizes of products can be completely different. The impact type is a special thick, short and stocky device with a blocky end of the handle, which is specially designed to work with a hammer, which helps to give it more power in work.

It is used most often with large fasteners, a special nut and a font that have indication marks.

Impact wrenches are very durable, can withstand high strength, which is needed to release large stuck bolts and nuts. They will also help when free space does not allow the use of a large device.

Hex Tool

Such a device has a hexagonal end. Tools are used during the unwinding of a bolt with a hexagonal recess at the end. The method of such work is similar to the method of operation of a screwdriver. In order to better understand the principle of operation of such products, it is worth studying the types of wrenches, especially you need to pay increased attention to the photographs of the products.

Illustrative information helps to learn more about the features of any model.

Hexagonal devices come in two forms: with L-handles and T-handles. L- figurative keys are created from a hexagonal wire, while T - shaped handles are considered the same hexagonal wire with a metal or plastic handle attached to a specific end.

Types of key and its name can also be studied in a hardware store. Most of the names of the devices come from their appearance.

Such hexagonal products have a head on a short arm and a hexagonal ball head on a longer arm. They enclose a large contact surface on the head of the screw. This reduces the possibility of heavy wear or rounding of corners in the screw.

A ball on a long arm is needed so that the key can be easily inserted into the head, which will help turn it at a certain angle, this is very important for use in hard-to-reach places.

The round shafts of the keys fit well in the hand and make the operation as easy as possible.

Since for such quality products stainless steel is used, then there will definitely not be any problems with rust. If you noticed it on the surface of the device, then there can be only one reason. This is due to active use instrument in order to turn the screws or bolts of excess steel. The pressure after itself leaves traces or components of another metal on the stainless beak, and in this case, corrosion develops under the influence of oxygen.

balloon instruments

This type of device is used to loosen and tighten the nuts on the wheels of a car. In the United Kingdom and Austria, it is widely used as a wheel brace..

Wrenches of this format may have an L - shaped metal rod with an end product on a curved tip and a knee on the other. The capturing tip is used to remove the caps from the wheels, which are fixed with the hooks of the tips.

On the market building tools Gedore is especially popular. It creates high-quality products that are actively used by motorists from all over the world. Appearance The first Gedore sets will definitely appeal to every car enthusiast.

Another common species, sometimes called the key spider, is represented as a cross with spaced nests at each of the four ends.

It is best if the bolts (or nuts) are tightened with a torque tool. These devices are much cheaper. Installing wheels while using them requires more force. Excessive force can make the nut very difficult to remove. In addition, the uneven distribution of force between the nuts and the device itself can lead to deformation of the brake rotor if the car has disc brakes.

For this reason, balloon tools are best used only to remove the nuts from the tip, and not to tighten them. In practice, such a rule is very often not observed even by professional mechanics themselves.

For every auto mechanic or common man, whose profession is inextricably linked with the use of a large number of tools, you can buy cutlery in the form of wrenches. Such an unusual gift will definitely please them.

tubular model

The tubular device is represented by a tube, at the ends of which there are hexagons, special holes are made in the tube for a knob (a rod that plays the role of a lever). The hex size at the end of one key will vary considerably. Equipment and some machines, including cars, are sometimes equipped with such simple products.
In some cases, the manufacturer bends the pipe, while obtaining an L-shaped tubular device. They have the same hexagon index at the end of one key, and the functionality of the positions is just like that of L-shaped end devices.
A type of tubular device is considered to be a candle (for automotive spark plugs), it has a hexagon on one side.

In the cavity of the pipe, there may be protruding parts of threaded connections, for example, strongly protruding parts of a candle.

Products equipped with a ratchet

Cap and end products can be modified together with a ratchet mechanism (in other words, combined with a ratchet). The main advantage of such a ratchet wrench is that it does not need to be thrown. Another important advantage is the small angle at which the wrench is turned to carry out the screwing and unscrewing of the nut.

Ratchet mechanisms differ significantly from each other, for example, in terms of the number of teeth, if the mechanism has 72 teeth, then 5 degrees will be enough to turn, if 50 teeth, then 9 degrees, and so on. The formula for calculating is the angle of 360 degrees divided by the number of teeth. This is very important when working in very cramped conditions.

The main disadvantage of the device is the ratchet, which is considered its weak point, as it can easily break under load.

No auto repair shop can do without a wrench. To tighten nuts securely, there are many different wrenches, and this does not include narrow specialization wrenches.

But from this set, several main types of wrenches can be distinguished: cap, open-end, combined, adjustable and end wrenches, which are shown in the photo.

Varieties of keys

To know how to choose the right socket or wrench, you need to familiarize yourself with their varieties and properties. To do this, consider the most popular and sought-after types of keys.

Horn tool

The most popular and well-known wrench tool is open-ended. With its help, the nut is fixed with horns. Hence the name - carob.

However, in current standards it is referred to as a “wrench with open throat". The handle is located at an inclination of 15 degrees. to the handle. This position is the most convenient and allows you to work in particularly narrow places.

In addition, the handle can be positioned at an angle of 7 degrees between the handle and the ring. The combined method involves a different combination of angles: 15 degrees. from one edge and 70 degrees. from another.

Often, keys are equipped with two heads at once, and of different sizes. In this case, there is no need to purchase two keys. Among the shortcomings, one can single out a small space for interaction and with increased pressure, corners can be crushed, especially if the dimension of the key does not match the nut.

It is better to use only correctly selected and combined sizes. Thin horns will cause less damage to the corners.

To unscrew old fasteners covered with rust, you need to use impact wrench, which on the one hand has a special thickening for striking with a hammer.

Many wrenches come with a specific horn configuration. For example, one is shortened, the other has a protruding notch of a non-standard configuration. Here you can see two positive qualities: Fast action and minimal chance to blur the corners of the edges.

In simplified tool models working surface has protrusions or corrugations, which makes it easier to work with crumpled corners of the nut.

Cap tools

A modernized type of open-end wrench is considered to be ring or ring wrench, which leave a small contact patch, since the nut is wrapped around the head from above and the load is evenly distributed. And not 2 faces, but 6. In addition, the process of crushing corners is practically excluded. Due to the smaller head size, it is more convenient to work with it.

The ring wrench has a six or dodecahedral profile. The first is more convenient to use, the second has large area contact and the possibility of applying more force.

The head of the tool is either located in the same plane with the handle, or at an angle of 15 degrees, which are used in different conditions.

Little used are flat, more in demand - with a curved head. Some models are equipped with a ratchet or hinge.

The handle for greater convenience can be curved or in the form of a crescent.

combination keys

This option combines two types at once: carob and cap. They are endowed with only advantages without disadvantages, therefore they are more in demand and common than the rest. Combinations with other types are also possible. For example, with the end. But this is a less common model.

adjustable wrenches

According to the principle of operation, the adjustable one resembles an open-ended one, with the only difference that you can change the dimension by pushing the horns apart. They are mainly used in everyday life, and not in production, since their disadvantages include:

increased dimension of the head, which creates inconvenience in narrow places;
due to the formation of backlash, it is impossible to firmly fix the nut, as a result, the corners are smoothed out, and this can even lead to injuries;
a low level of strength does not allow you to create the necessary force;
the horns keep slipping.

Among the advantages, one can single out only the ability to adjust the dimension of the head. If necessary, you can replace it with socket wrenches that have interchangeable heads.

socket wrenches

In car repair, it is simply impossible to do without socket wrenches. Their design assumes the presence of a hexagonal recess at the end. This recess is thrown on top of the fasteners and rotated in the right direction.

For ease of use, you should purchase a tool with a small lever and interchangeable heads different sizes.

When unscrewing the bolts, you will need to make a little more effort than tightening them, since the thread tends to turn sour.

Photo of wrenches and socket wrenches

Hello,

Truly, human imagination is boundless, so many tools have passed through me, but no, no, but you will be surprised. So this time, a very unusual adjustable wrench came to me for review, at least this one has not yet “fallen” into my hands.

We are all familiar open end wrenches, spanners and adjustable wrenches, let's not forget about the "ratchets" for trim heads, gas, etc.:

The key that arrived is a "cross" of the above, a kind of unknown little animal, but quite functional.
But in order.
The packaging is unremarkable, I would even say mediocre:

The key itself:

Size:

Weight:

The key is made, although somewhat rough, but strong - all working parts are made of thick metal.
It lies comfortably and “weighty” in the hand, the handle is comfortable with rubber inserts:

All "controls" are concentrated on the back side of the top of the key:

Switching the direction of rotation (Right / Lleft) was taken from the “ratchet”, and from wrench- a lamb (similar to a gear), which is responsible for reducing the jaws of the key:

We turn the lamb down (in the direction of the inscription "OPEN"), the lips are unclenched (Hussars be silent! :)

Turn up (CLOSE) - the lips are compressed:

small video

By the way, for the fact that there are inscriptions "OPEN / CLOSE" I am ready to erect a monument to the developers, because in the usual adjustable wrench - I regularly confuse the direction of rotation of the pedals (I think I'm not the only one).
Mixing, as you can see, is something else, but in this case it does not play a special role, because. putting on the subject of effort, a nut or bolt, the tool, as it were, self-centers due to the angles on the object being twisted.
The mechanism for transmitting rotation to the shaft along which the clamping parts of the key move:

It is not worth worrying about the fact that it is possible to unwind the screw in the OPEN direction so that the jaws fall out of the key; there is a blockage.
Depth 20mm:

In the product description, the size is 6-22mm
Here is the M6 nut inserted ( outer dimension 10mm):

and there is still a margin for information.
Nut M12:

Adapter 1/2 inch (this is the maximum size for a wrench):

Half-inch faucet no longer climbs:

Now for the application. Just found a task where the key, unexpectedly, came in handy. I came across a pressure reducer, on which a pressure gauge was installed, which began, on the sly, to leak and gradually flood the neighbors:

It was decided to completely get rid of the pressure gauge by putting a plug in its place. But bad luck, the gearbox is very inconveniently located, on the right fan pipe, on the left, the wiring pipes and the most unpleasant shut-off valve, which does not allow the handle of the key to move. wrench with right size divorce of sponges, well, I didn’t climb into this small space, I used the gas one:

After 20 minutes of twisting by centimeter, with constant turning over of the key, with the danger of it falling and remembering kind word builders, I remembered about the overview :), which is the best fit for this specific task (pay attention to the chips - the result of "work" with a gas key):

The key was tightly put on the plug (fully extended) and without problems, in the shortest possible time, completed the work. The return "ratchet" in this case turned out to be extremely useful:

Output

In general, in my purely personal opinion, the key is very good. Can be used instead of cap and carob. Of course, it will in no way replace a completely adjustable wrench if you work not only with bolts and nuts, because. you can put it on only from above (well, or else, for example, use it to wind the adapter from 3/8 to 1/2 - there is such a need when connecting water to Bulgarian toilets :), but at certain moments, it can be very useful and versatile, t .to. the size is more compact than that of a wrench similar in extension, and the “ratchet” will come in handy. Moreover, IMHO, this wrench is better fixed on the nut than the adjustable wrench, due to the fact that it is put on exactly at the corners of the edges and their “licking”, as often happens with the adjustable wrench, does not occur here with great effort. Compared to a “ratchet” wrench with heads, the plus is that you don’t have to carry them with you and select the right one.
The bag, the keeper of the keys, hums pretty :)

That's all.
All good!

The product was provided for writing a review by the store. The review is published in accordance with clause 18 of the Site Rules.

I plan to buy +73 Add to favourites Liked the review +129 +225

Used for bolted connections spanners. They come in several varieties, each of which is used for specific purposes. The choice of instrument configuration depends on the complexity of access to threaded connection. If it is in an open place, then any wrench will do, but if you need to dodge, then you need a special shape of the tool.

Varieties of wrenches

First of all, the tool differs in size. Each one is designed for a specific hex nut. The key size is indicated by numbers that correspond to the diameter of the landing throat in millimeters. Foreign tools may have an inch designation, but they are practically not used in the CIS.

There are more than 10 types of wrenches, which are divided into the following groups:

Monolithic.
Adjustable.
Composite.
with a special profile.

Special keys can also be noted, but they are used very rarely and only in special designs. Most of these tools are almost never used, so they can be ignored.

Monolithic wrench

The monolithic wrench is a one-piece metal structure. This tool is the most common. It is mainly made of special steel, which includes chromium and vanadium. Monolithic type is divided into several subtypes:

Rozhkovy.
Union.
End.
Combined.

Rozhkovy

The open end tool is used for nuts and bolts from 3.6mm to 95mm. This is the most common key that is used in all areas, including car maintenance. Its design is a flat profile, at the end of which there are two axes for covering the heads of threaded connections. The horn instrument is single-sided and double-sided.

One-sided has horns on only one side, while the second is a cut profile. Often, to work with a tightly clamped connection, a tube can be put on the second end of the wrench to increase the leverage of force, and to facilitate untwisting. The double-ended wrench has horns at all ends. Usually they are designed for nuts of different diameters.

Thanks to flat design wrenches are quite compact. The direction of their jaws has a deviation of 15 degrees. This reduces the risk of slipping and adds extra maneuverability. The disadvantage of the horn design is the fragility of fixing the joints. When untwisting with strong force, metal is abraded on the edges of the bolts. In addition, breaking off or expanding the horns is possible.

Union

The ring wrench has a size from 6 to 55 mm. Its working part is a ring with edges, which ensures complete crimping of nuts and bolts. When working with such a tool, the risk of licking the edges is eliminated. The cap design can also be one-sided and two-sided. The one-sided variation includes a tool in sizes from 30 to 55 mm. The disadvantage of the cap type is the need for open access to the threaded connection. If the nut is only a few millimeters from the obstacle, then it will not be possible to fix the key on it.

End

The working part of such a tool is a tube with an internal notch for fixing the edges. The wrench is used to loosen deep seated bolts and nuts. Reliability of fixation corresponds to the cap. Depending on the shape, there are tubular, "T" and "G" shaped. The former are a straight tube, with ends fitted to the edges and a small through hole in the center, which are used to thread the pin to facilitate turning. Such wrenches are called candle wrenches because they are used to change spark plugs in internal combustion engines. "T" and "G" shaped keys have 6 or 12 faces. Their curved shape is adapted to certain working conditions.

Combined

Such a double-sided tool has an open-end and ring spanner at each end. Available in sizes from 5 to 32 mm. A variant of the same or different sizes of open-end and box wrenches is possible. Such a tool is often included in standard kits for servicing motorcycles and other small equipment.

adjustable type

The adjustable wrench is more advanced, but not as robust design like a monolith. It can change the size of the girth of the working part, therefore it is suitable for a wide range of nuts and bolts. There are several subtypes of adjustable tools:

Adjustable.
Pipe.
Adjustable.
French.

Adjustable

Adjustable resembles a carob, but is more massive. Its feature lies in the sliding jaws. Such a tool is universal. It allows you to work with non-standard sizes nuts. Changing the working width is done with a simple worm-type adjuster. Such a tool fixes only two faces, so it can lick nuts. It must not be hit with a hammer, as the worm adjuster may jam and bend, making further attempts to adjust the width impossible.

Trubny

Pipe wrench refers to universal tool. It comes in 5 sizes with a coverage range of 0 to 120mm. Adjustment is carried out using a clamping nut on one of the handles. The capture of faces is carried out by two sponges like a lever. The tighter it is clamped, the more reliable the fixation will be. There are several options for the shape of the lips. They are flat and rounded. The former work with ordinary nuts, while the latter can capture rounded joints.

Adjustable

The adjustable wrench also provides a grip on the lever system. To work with it, you need to apply a strong force, since its design is more primitive than pipe. The surface of the adjustable mechanism is serrated, which provides a tighter contact between the two handles. There is also a notch on the lips. It increases the reliability of the fit of the horns to the surface of the faces.

French

The french wrench is very old design. Despite this, it can be found in the tool kit of many motorists and mechanics. The French design was invented back in the 18th century. Since that time, the principle of tool adjustment has changed slightly. It should be noted that such keys suffer from the presence of backlash, which complicates the reliable fixation of the jaws. They do not tolerate shock, so if the nut does not give in, then it is best to use a tube to increase the leverage.

Composite type

Composite type is a socket head. On the one hand, they have 6 or 12 faces for fixing the nuts, and on the other, 4 faces for holding the knob. When assembled, the composite key repeats the design of the conventional end type. The advantage of the heads is that they fit under one collar. Thus, a whole set of end caps and one handle can fit in a small box. At the same time, it will present all the popular sizes that are required for work.

Handles of several designs can be used for heads:

Hinged.
With ratchet.
L-shaped.
With screwdriver handle.

The disadvantage of heads is that they do not fit everywhere. For hard-to-reach places, they are often unsuitable. This is due to the thick walls of the nest. In addition, when working with dirty and rusty joints, there are times when the head fits tightly on a nut or bolt, after which it is difficult to remove it. With force, the crank simply pops out of the mounting hole, while the nozzle remains in place.

Keys with a special profile

Special profile wrenches are male tools that fit into special holes on the bolts, rather than capturing their heads. There are hex and star wrenches. They have a small diameter and are mainly used for fixing furniture joints. They are also used for assembly and disassembly of household appliances.

The hex key is an ordinary L-shaped rod, machined into 6 faces. It is he who is used for conformation in the assembly and repair of furniture. Wrenches with a diameter of 1.5 to 24 mm are available. You can often find an even variation of the key in the form of bits for .

A star-shaped wrench is an L-shaped rod with a curly sharpening at the end, resembling the shape of a screwdriver. It is used to work with small bolts in household appliances and elements of the car interior. Small wrenches are used for disassembly mobile phones and tablets. Often, a special screwdriver is used instead of a torx type.