DIY flexible bit for electric screwdriver. Extensions for heads

Flexible shaft for electric screwdriver: design, purpose and application

The corner adapter for an electric screwdriver is divided into two types: flexible and hard.

• the ability to penetrate the most inaccessible places;
• twisting tightly planted screws;
• widespread use in everyday life;
• not suitable for twisting metal screws.

The hard adapter differs from the flexible following characteristics:

The structure of these types varies significantly. The flexible has a metal case, the capture bit on the magnet, the flexible shaft. The hard adapter is made of steel, two types of capture, magnetic and fist, there is a bearing.

How to do it yourself?

You can make such a product yourself, using the cable as the basis. It can be from clutch, gas or speedometer. The wire in the braid is purchased or taken by the existing one. it is almost impossible to make it yourself. She is threaded inside the cable.

One end of the future core is connected to the shank, for which the nut and welding are used. At the second end, a cartridge from an electric screwdriver is planted

When using a home.made flexible shaft, it is important to keep it not by the cartridge, but for the protective shell, that is, a cable

The choice of finished product should be approached with great responsibility. Work performed using a flexible shaft, differ in complexity and duration. A malfunction of one mechanism will entail a violation of the work of all others

When buying, you need to pay attention to the manufacturer of the goods. A proven and correctly made device will provide high quality work performed

Buying a haste will wrap up with double expenses. In addition, if the work needs to be done urgently, the deadlines will be missed.

In the next video you will find a review of a flexible shaft for an electric screwdriver.

Adapter for a drilling cartridge

This adapter allows you to fix any drilling cartridge for a larger diameter. Most screwdrivers have a 10mm cartridge, but sometimes there is not enough such diameter. You can, of course, remove the regular cartridge, but as a rule it sits very tight and you need to drill a stop screw. With this adapter, nothing of this will be required.

Turning extension cords

Are a more advanced analogue of previous adapters, but with the possibility of deviation from the axis. Who at least once twisted the screws with uniform heads know that with a slight deviation of the tool from the axis, the beating and increased wear of equipment begins. With these extensors there is no such. Perhaps they are not so strong, so it is better to tear bolts or nuts better.

Flexible shaft

This nozzle on a screwdriver is designed for the convenience of twisting fasteners in hard.to.reach places. Flexible shaft is an excellent assistant in assembling furniture and other works. Unlike analogues, this shaft bends in all directions and has a length of 295 mm. The tool is made of metal and flexible polyurethane plastic, which has good wear.resistant properties. If desired, you can choose red, blue and even orange color of the flexible base. There is also a shaft in classic color silver metallic.

Corner nozzle

These options for corner nozzles are used in hard.to.reach places where it is necessary not only to change the angle to screw the fasteners, but also to give the necessary effort. Such a nozzle provides good stiffness, which allows you not to hold it with your hand and fasten it in narrow places and the joints of furniture panels.

How to choose?

Since the construction market is today presented by a huge selection of nozzles to Shurovyrt, it is difficult for beginner masters to make the right choice in favor of a particular product.

Therefore, going for a purchase, it is important to take into account the following points.

• Material. Particular attention should be paid to the material from which the bit is made. Experts recommend collecting nozzles from tungsten, vanadium, molybdenum and chromium. Steel bits have many drawbacks, they are quickly erased and do not provide quality work.

Bits made of alloys of several metals are considered a great option. In this case, the metal part should be not only the working part, but also the mounting elements.

• Place of purchase. It is advisable to purchase such tools in specialized stores, and not in the market. Their quality and duration of operation will depend on this. In addition, sellers must provide certificates for products and give a warranty period. If nozzles are needed only at once, then you can buy cheaper options.
• Protective covering. It is best to give preference to bits that have titanium spraying. They are the most persistent, durable and are not inferior in characteristics of nozzles with nickel and diamond coating. Also good bats in which the protective layer is made of tungsten. They are not afraid of corrosion and work much longer than those released without coating.
• Trademark. Recently, you can find nozzles from various manufacturers on sale. They differ not only in price, but also in technical characteristics. Bits of the brands Slot, Torx and Pozidriv received good reviews. They have high quality, durable and reliable in work. As for the price issue, these manufacturers produce nozzles of various costs.

About how to properly use nozzles for electric screwdrivers, watch in the next video.

Specifications

As always. the seller and my approx for the material: carbon steel type of head: hexagonal most everyday, 1/4 inches = 6.3 mm color: black, blue, orange, red now there is not all mass: 74 g of packaging: 0.094 kg is not true, a package of a couple of grams weighs the dimensions of the product (d x w x v): 29.500 x 1.800 x 1.800 cm I have plastic ⌀16.3 came out, not fundamentally the size of the package (d x sh x c): 30.500 x 2.800 x 2.800 cm / 12.008 x 1.102 x 1.102 inches again error, in the package it will turn the letter U maximum torque.

This is the most important parameter that is not given. But I know now. My Bosch PSR 14.4 Li-2 gives 40 nm. This is a bit too much for the observed product 🙁

Appearance

It can be seen that there is a flexible shaft typed from a steel wire. Core. a tourniquet of straight wires, a shirt. a tightly navigated multi.assembled spiral. This shaft was pressed into the tip. But, unfortunately, the Chinese cheated. At the same time measured ⌀ shaft 5.0 mm ⌀ external for metal 9.eight

There is a penny, ordering a new one is not a problem, the problem is to find such a thing so that it does not fall apart again. Now I think if it is possible to fix it. Spill along the axis and pin. will collapse. Press. you need a press, a sledgehammer could turn out, but definitely not for cold. And warming the plastic prevents. Glue is unlikely to withstand. It looks like an emission.

Work

Outwardly, the flexible shaft is almost no different from the thick cable, only its surface is often corrugated. Tighty hinge joints are installed on the flexible val, which retain their immobility during operation. You can notice how only the tips begin when turning on an electric screwdriver.

The user can hold the adapter in his hand and twist or twist the screws without fear of damaging the palm. Some models have a limit when using self.tapping screws, and it reaches 470 mm mark. If this indicator is, for example, 4100 mm, then after overcoming 80 mm inside the beam, a flexible shaft simply turns into a loop and cannot complete the task. If you try to continue work, then the cable inside simply breaks near the nozzle. The maximum load is 6 nm.

How to do it yourself?

You can make such a product yourself, using the cable as the basis. It can be from clutch, gas or speedometer. The wire in the braid is purchased or taken by the existing one. it is almost impossible to make it yourself. She is threaded inside the cable.

One end of the future core is connected to the shank, for which the nut and welding are used. At the second end, a cartridge from an electric screwdriver is planted. When using a home.made flexible shaft, it is important to keep it not by the cartridge, but for the protective shell, that is, a cable.

Such an extension cord will come in handy when there is no way to buy it. In terms of technical characteristics, the correctly designed adapter is in no way inferior to the new one, you just need to spend time on its manufacture and take care of security so that it does not explode during operation. For this reason, welds should be done efficiently.

The choice of finished product should be approached with great responsibility. Work performed using a flexible shaft, differ in complexity and duration. A malfunction of one mechanism will entail a violation of the work of all others. When buying, you need to pay attention to the manufacturer of the goods. A proven and correctly made device will provide high quality work performed. Buying a haste will wrap up with double expenses. In addition, if the work needs to be done urgently, the deadlines will be missed.

How to get a screwdriver to complex places. Uglover, extension cord with a latch and a flexible shaft. And of course disassembly.

We will study how to get a screwdriver or electric screwdriver in hard.to.reach places. Sometimes the screws have nuts and bolts in such places that it is difficult to crawl to them. There are screwdrivers with a rotary head, there are rattles and other devices to solve such problems. This problem is not often found, but it somehow needs to be solved. Therefore, I bought what is simpler and cheaper. So, the first flexible shaft. Plastic flexible casing and cable inside, at the end and beginning of hexagons 6.35 for bit. Some power loads cannot do it, but he can unscrew something easy. For example, the screws of mounting the sheathing in the doors of the car are not very convenient, the screwdriver with the both holder cannot crawl. And the flexible shaft is fully coped with such a task, but the screw in plastic may not be disrupted. To break the screw, you can use the angle. Or Mr-shaped key from this review. In principle, you can tear off and unscrew the screws on the casing in principle. The side gap of the angle is smaller than that of a flexible shaft, but the shaft can crawl to some narrow places, the angle of rotation can be up to 180 degrees, and it is fixed in the angle of the angle. I wear them both, they complement each other. Through the angle, for example, you can tighten the self.tapping screw 4.2 with a spokeshab into thin sheet metal. Great tasks are difficult for him. He had a small backlash from such works, but nevertheless, on do still works.

The only thing if I took it now, I would take the version more authentic with the holder. tail. It is difficult to hold on to such a small gearbox and put pressure on it when twisting the screws.

Well, another joke that helps me twist the screws and screws is a extension cord with a bit. I took short, but there are versions of different lengths. In the angle and flexible vale, the bats are fixed with a magnet, it seems to be good. But sometimes the bit stuck in a self.tapping screw and, when you pull an electric screwdriver on yourself, the bat remains in the screws of the screw. And then he often falls, when working at heights, it causes some problems, especially when you hang the floor of 15 and the bat falls down somewhere This extension cord is hard to fix the bats, its black “skirt” is pulled back and the bit is inserted.

The bat is fixed by the stop, which is removed when pressing the skirt. It is for such fixation that there are special slots or grooves on bits. That is, if the bat is inserted into such a holder, then you can be sure that it will remain in it, and will not fall out, stuck in a self.tapping screw. And one more plus holders of the type that they allow you to keep the “skirt” while you are twisting a self.tapping screw. If the self.tapping screw, then when drilling the hole, it strives to fall on the side. And with this joke you can twist with an electric screwdriver and hold the axis by the holder, the “skirt” spins freely. This prevents the screw to fall aside.

Well, let’s see what’s inside these adapters. I couldn’t make a direct extension cord. Flexible shaft. I just cut out external plastic with an office knife. Inside the spring and cable. The cable along the edges is pressed into holders. Typical breakdown. with an application of too much effort, the cable jumps out of the holder. In my opinion, the repair is not appropriate at this price. Although it is probably possible.

Uglover. two bearings are pressed from two strings. You can see the locking ring. As I did not try, I could not remove it. The maximum that I was able to do was remove the side puck of the bearing and look at the balls and a plastic white separator. It seems that the bearing is single.

In general, a tool for a home master or rare use, while when you have to use it, think “and what would I do without it”. Sometimes significantly accelerates the work. For frequent and professionally, there are other tools with the same functionality but better quality, while there is already a completely different price.

Magnetic adapter for bit with groove

I saw this thing in one of the collections like “50 plague goods with Aliexpress”, found where cheaper, I ordered. now I am sharing with you. The title picture is available explains why this thing is needed. Such an adapter is not suitable for all bit, but only for those that have a circular groove. It allows you to fix the adapter on the bit the product has reached me for 2 and a half months. Supplied in a regular bag with a pimp. It is a round metal nozzle with a ring magnet on the outside a metal ball, as in screwdrivers, fixes the nozzle on the bits of the Bita detachable dimensions of the adapter: length 21.3 mm internal diameters, despite the difference of external ones, the same: 7.3 mm as in a narrow part And in a wide, the same bit with a groove for this nozzle came complete with an electric screwdriver PRACMANU, the nozzle is mounted easily and quickly

At the bit, this position sits with a slight free stroke

The magnet is strong enough. From a bunch of screws can be picked up at once, unfortunately, independently does not get into the helmet self.tapping screw

It is necessary to direct it and then, it turns out not the first time, since the bat is also magnetized by the adapter and the hat to it immediately sticks

But, if the metiz has embarked in place, then he holds there very tightly even if desired, it will not work to shake it off with one hand

Respectively maintain a self.tapping screw, there is no need even when screwing it vertically down

I don’t know how much such an adapter accelerates the work, but it is convenient with it when only one hand is free at the screwing stage (for example, you hold on to something) or you have to screw the metiz into some kind of narrow place or deepening, where to support it with the second hand It will be unprotected.

The design of the flexible shaft

A flexible shaft for an engraver or any other equipment, the rigidity for the twist of which is made higher requirements than to bending stiffness, as mentioned above, is used in order to convey the torque to elements that change their spatial position in the process of work.

The main part of the flexible shaft, which is responsible for the main function of such a device, can be a wire rod or a special cable. This element is made of materials that have high stiffness for twisting. An additional layers of the retinue wire are wound on the main core of the wire flexible shaft to give it higher stiffness. To ensure the safety of the use of a flexible drive shaft, as well as protect its surface from damage and maintain a lubricant on it, this device is placed in a flexible protective shell, which is motionless in relation to a rotating core.

This flexible shaft is equipped with a cartridge for nozzles on the one hand, and on the other with a pitch nut for fixing on the engraver

Depending on the constructive performance, flexible shafts can be of right or left rotation, which should be paid attention to when choosing and using them. There can be not only the design of flexible shafts, but also their length, sometimes reaching five meters.

From where the flexible shaft is installed. on the drill, engraver or electric screwdriver. the design of the fasteners of such a device also depends. So, at the ends of the shaft, fasteners or fasteners of a different type can be placed.

The tip of this shaft can be removed for cleaning and lubrication, for which a hole is provided on the side

Using flexible shafts of different designs, various mechanisms and equipment are driven. In addition to engravers, drifts and screwdrivers, such shafts are equipped with deep vibrators, motorcycles and many other types of technical devices. The simplest and acquaintance of many options for using a flexible shaft is to clean the sewer pipes from internal blockages.

Car mechanical speedometers are also driven by flexible shaft. The manufacture of a flexible shaft with your own hands, of course, is possible, but given what such a device works under the load, it is better not to experiment and purchase serial products from trusted manufacturers. It is possible to puzzle with the issue of self.manufacture of a flexible shaft only if it is used to drive low.power equipment operating at small speeds.

Rules for working with an engraver equipped with a flexible shaft

There are a number of rules that should be followed when using an engraver with a flexible shaft for processing various materials.

What needs to be done before starting work

Before starting work, they choose nozzles. All of them should be at hand, so as not to waste time on their search. While the device is in the off state, it is better to hang it on a special hook, which comes complete with most modern models.

It is possible to prevent adhesion of the chips formed in the process of processing to the surface of the tool if you pre.cover it with a layer of paraffin. It should be borne in mind: if forced ventilation is not provided in the design of the tool, it can work for no more than 15–25 minutes, and then you need to give it time for natural cooling. In this way, you will protect your engraver from premature failure.

Holding the engraver with your hands, you need to try not to cover the ventilation slots with your palms

Change the speed with which the engraving tool is rotated by a flexible shaft is necessary both when changing the operations performed and when switching to the processing of another material. At low speeds, the processing of softer materials are performed, such as, for example, plastic. If you process such materials at high speeds, this can lead to intensive heating of the tool and melt the edges of the processed part. At medium speeds, the processing of metal products are performed, on high. from solid natural stone.

Like any other technical device, an engraver equipped with a flexible drive shaft, needs appropriate care. Correctly and regularly executed, such a care will not only allow the use of the device at its maximum power, but also significantly extend the period of its trouble.free operation.

In the process of processing performed using an engraver, the blades of its fan are actively clogged with dust and small particles of the developed material. In order for such a fan to work efficiently, it must be regularly cleaned using a soft tissue moistened in soap solution. In no case can various solvents and aggressive detergents be used for these purposes, which can lead to premature damage to the fan blades.

To clean and lubricate the insides, the tool has to be disassembled. This infrequent procedure requires certain repair skills

The technical condition of the nozzles used with the engraver must also be regularly checked. The worn nozzles should immediately be replaced with new ones, as they can cause increased vibration of the device, which will eventually lead to its premature failure.

It is very important to pay constant attention to the technical condition of the flexible drive shaft of the engraver. On the protective shell of the shaft, which is made of polymeric materials, there should not be serious mechanical damage, which can lead to premature failure of the shaft. After each use of the engraver, its lead shaft is advisable to clean from dust and other contaminants, wipe and, if necessary, lubricate the tips with which it is connected to the electric motor and working nozzle.

Liquid oil is used to lubricate the internal cable

In the process, you need to ensure that the flexible shaft does not bend too much. Both during storage and during operation, it is necessary to protect the flexible shaft from mechanical damage.

Modern models of engravers and flexible shafts with which they are driven are quite reliable devices. When ensuring regular care, they are able to serve for quite some time without a deterioration in their technical characteristics.