2024 Author: Beatrice Philips | [email protected]. Last modified: 2024-01-15 04:10
In the process of construction work, the necessary tools are drills and a drill. Currently, there are a large number of different types of bits, depending on the size, type of shank. Some samples may not fit all drills. In such cases, special extension cords are often used to connect to the unit cartridge. Today we will talk about the features of such additional tools and what types they can be.
What it is?
The drill extension is a small elongated design that allows you to extend the product and make deeper through holes in various materials. In this case, any extension should be slightly smaller in diameter compared to the drill itself. Besides, when working with such an additional accessory, you should carefully adjust the cutting conditions when drilling.
Today, such extensions are separately produced, designed for certain types of drills (pen models, for hammer drill edges) . They can differ significantly from each other in some design features, which must be taken into account when choosing the appropriate option. These drill accessories are most often made from a quality steel base. But there are also some models made of special types of plastics. On average, the total length of these products can be approximately 140-155 millimeters.
Additional parts for the drill are easy enough to fix . They, as a rule, have hex shanks, which can be fixed in the chuck of the electrical unit with one movement and easily detached. Many models provide for the possibility of quick replacement of such equipment.
What are they?
Extension cords can be of many different types. The following options for such building accessories can be distinguished.
Extension for Lewis drill . Designed for spiral products, this model is a thin, cylindrical metal tube with a small hex shank at one end. Most often, this type is used to create deep through holes in thick wood surfaces. Such extension cords sometimes come in one set with a special imbus wrench. This version with a hex shank can be thicker than all other types of such accessories.
Most often, these extensions are made from durable carbon steel.
Forstner drill extension . This variety looks like a thin metal structure with a hex shank (its length is usually about 10-12 millimeters). A small joint seal is placed at the other end of the product. The total length of the entire part, as a rule, reaches about 140 millimeters.
Pen drill models . These elongation products have a cylindrical elongated shape. The tip is round and tapers slightly towards the end. Often this extension is used not only to make deeper holes, but also to drill in hard-to-reach places on the surface. The total length of the entire product reaches approximately 140-150 millimeters.
Special flexible drill extensions can be distinguished into a separate group . Often, the main body is made of soft black plastic. Sometimes this material is made with a slight relief. At the ends of the plastic there are metal tips, including a hex shank.
Today you can find whole sets, in which, in addition to the plastic extension cord itself, there is also a set of several different attachments - each of them is designed for a specific type of drill. They can be easily replaced if necessary.
Such options are considered more practical and convenient to use compared to rigid structures that are sold by the piece.
The SDS extension cord can also be distinguished separately . It has a cylindrical shape. There is a thin spiral piece at one end of the product, and a hexagonal thin shank at the other end. This model is only used in conjunction with percussion drilling tools with bits. Such devices can be suitable for drilling brick surfaces, natural or artificial stone, concrete surfaces. The drilling depth with such a construction accessory can be approximately 300 millimeters.
How to do it yourself?
If you do not want to purchase an extension cord from a hardware store, you can make a long drill yourself. To do this, you first need to take a long nail of a suitable diameter. His hat will need to be carefully riveted. This can be done with a simple hammer. All the edges of the nail head are gradually sharpened, gradually giving it the pointed shape of a conventional drill.
In the process of sharpening the cutting part, do not forget that the chuck in the device always rotates clockwise.
If in the future you have to drill in loose wood surfaces, it is better to rivet the nail head in the form of a pointed tip. In the process of drilling with a homemade part, the walls of this material are sealed, which is an important condition for easy and quick tightening of the screws . You can also lengthen the drill yourself by increasing the length of the shank. To do this, you need to create a small hole in it for an internal thread. Then it is cut with a tap. An external thread is made on a rigid metal rod. The resulting parts are twisted together.
In order to achieve maximum strength and reliability, it is better to weld the formed joint and thoroughly clean it, but this procedure is not mandatory.
The shank can be extended in another way . To do this, you first need to prepare a strong thin metal rod. Moreover, its diameter should be slightly larger than the shank diameter. Its surface should be absolutely flat, without small scratches and cracks. You will also need turning equipment for work. The build-up begins with the fact that the diameter of the shank is slightly reduced on a lathe. At the same time, a small indentation is made in the metal rod. It will act as a hole for inserting the tool itself. After that, the shank is fixed as tightly and firmly as possible in the rod.
The joint is recommended to be welded and cleaned . At the final stage, the diameters of the old drill and the new extended shank are equalized. This can also be done using turning equipment. In some cases, an extension cord is made by welding a new metal bar and a drill. But at the same time, the diameters of both constituent parts must be the same. At the end, the junction of the parts is welded and cleaned so that there are no irregularities and scratches on the surface.
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