In the process of construction work, the necessary tools are drills and drill. Currently, there are a large number of different models of nozzles depending on the size of the shank. Some samples may not come for all drills. In such cases, special extension cords are often used to connect to the cartridge of the unit. Today we will talk about the features of such additional tools and what kinds they can be.
What it is?
The drill extension is a small extended design that allows you to lengthen the product and make deeper through holes in various materials. In this case, any extension can be slightly less in diameter compared to the drill itself. Besides, When working with such an additional accessory, you should carefully adjust the cutting modes when drilling.
To date, such extension cords intended for certain types of drills are available separately (feathery models for impact drill edges). They can significantly differ from each other by some constructive features that need to be considered when choosing a suitable option. These drill accessories are most often made of high-quality steel base. But there are also some models made from special types of plastics. On average, the total length of these products can be approximately 140-155 millimeters.
Additional parts for drill it is fairly easy to fix. They, as a rule, have hexagon shanks, which one movement can be fixed in the cartridge of an electric unit and easily disappear. Many models provide for the ability to quickly replace such a snap.
Extension can be of various types. You can select the following options for such construction accessories.
- Levis drill extension. This model, intended for spiral products, is a thin metal tube of a cylindrical shape, at one end of which is located a small hexagonal shank. Most often, this species is used to create through deep holes in the wooden surfaces of a large thickness. Such extension cords sometimes go in one set with a special imbus key. This type with a hexagon shank may have a greater thickness compared to all other types of such accessories.
Most often, these extension cords are made of durable carbon steel.
- Extension for the driver drill. Such a kind has the form of a thin metal design with a hexagon shank (its length is usually about 10-12 millimeters). On the other end of the product there is a small seal for connecting. The total length of the whole part, as a rule, reaches approximately 140 millimeters.
- Models for feathers drills. These lengthening products have a cylindrical elongated shape. The tip of the circular shape, he narrows a little by the end. Often, this extender is used not only to make deeper holes, but also to carry out drilling in hard-to-reach places on the surface. The total length of the entire product reaches approximately 140-150 millimeters.
In a separate group, you can allocate special flexible extension cords for drills. Often the main part is made of soft black plastics. Sometimes this material makes a small relief. At the ends of the plastic are placed metal tips, including a hexagonal shank.
Today you can meet whole sets in which, in addition to the plastic extension, there is a set of several different nozzles – Each of them is intended for a specific drill type. If necessary, they can be easily replaced.
Similar options are considered to be more practical and easy to use compared to hard structures that are sold individually.
Also separately, you can select the SDS extension. It has a cylindrical shape. At one end of the product there is a thin spiral detail, on the other end there is a hex thin shank. This model is used only with the shock drilling tools with crowns. Such devices can be suitable for drilling brick surfaces, natural or artificial stone, concrete coatings. Depth of drilling such a building accessory can be about 300 millimeters.
How to make it yourself?
If you do not want to acquire an extension in a construction store, you can make a long drill on your own. To do this, you first need to take a long nail of a suitable diameter. His cap will need to gently split. You can do it with a simple hammer. All the edges of the nail heats are gradually drawn, gradually giving it a pointed form of a regular drill.
In the process of sharpening the cutting part, do not forget that the cartridge in the device always rotates clockwise.
If in the future you have to carry out drilling in loose wooden surfaces, the nail hat is better to split in the shape of a pointed tip. In the process of drilling, the homemade detail occurs sealing the walls of this material, which is an important condition for the easy and fast twisting of the screws. Extend the drill on their own and by increasing the length of the shank. To do this, you need to create a small hole for the inner thread. Then it is cut by the tag. On the hard rod made of metal make exterior threads. The obtained parts twisted.
To achieve maximum strength and reliability, the formed joint is better to brew and carefully clean, but this procedure is not mandatory.
The shank can be increasing in another way. To do this, first need to prepare a durable thin rod of metal. In this case, its diameter should be slightly larger than the diameter of the shank. Its surface must be absolutely smooth, without small scratches and cracks. Also for work will need turning equipment. Building begins with the fact that the diameter of the shank is slightly reduced on the lathe. At the same time, in the metal rod make a small deepening. It will act as an opening to insert the tool itself. After that, the shank is most tight and firmly fixed in the rod.
The connection site is recommended to brew and clean. At the final stage, the diameters of the old drill and a new elongated shank are equalized. This can also be done using turning equipment.In some cases, the extension can be done by welding a new metal rod and drill. But at the same time, the diameters of both components should be the same. In the end, the connection site is welded and cleaned so that there are no irregularities and scratches on the surface.
About what extension driver to choose, look in the following video.