2023 Author: Philip Bishop | [email protected]. Last modified: 2023-05-24 22:24
- Choosing a drill for metal
- Choosing a drill for concrete
- Drills for wood: how to choose?
Choosing a tool for renovating an apartment. Choosing the right drills.
A drill is a versatile tool that you simply cannot do without when carrying out repairs of all kinds of complexity. Today, there are many types of drills, and therefore it is very important not to make a mistake and make the right choice, so that later you do not have to replace, or even just throw away such a tool in case of its premature failure. Do-it-yourself apartment renovation website will tell you how to make the right choice.
Essentially, all drills differ only in their appearance (diameter and length), as well as in the material for which they are designed and, as a result, sharpened. Accordingly, it is necessary to initially select the size of the drill (it is necessary that such a tool correspond to the thickness of the material that will be drilled, or screws, anchors, etc.). Next, you should select drills depending on the work that will be carried out.
Choosing a drill for metal
Drills for metal differ from ordinary drills (meaning those that are used for wood processing) in their versatility. Such a tool is indispensable when working with metals and with its help you can create holes in alloyed and unalloyed steels, cermets, cast iron and non-ferrous metals.
The most common today are twist drills for metal. As a rule, such metal drills are a cylindrical rod, in which two helical grooves are made, which form cutting edges. These grooves are made at an angle of 10-45 ° to the axis of the cutting tool.
You also need to pay attention to the material from which the drill is made. To date, the highest quality tool for metal processing is made from high-speed steel (for example, P6M5) or alloyed (9XC). These drills have increased durability and strength, and also give the opportunity to achieve maximum results in the process.
Choosing a drill for concrete
Concrete is a strong and powerful material that is very difficult to process, especially to drill a hole. As a rule, special drills with soldered tungsten and cobalt hard alloy ("win") are used for drilling concrete. In addition, thanks to the use of modern technologies in the manufacture of cutting tools, drills made of modified tungsten-cobalt alloys have appeared on the market.
For processing bricks or concrete, drills are used, whose tips are soft or medium soft. In the same case, if it is necessary to process granite or other hard materials (for example, the same tiles), then you simply cannot do without using victorious drills with plates of medium and high hardness (additionally, a series of teeth and re-sharpening are performed on them).
Drills for wood: how to choose?
For woodworking, the modern market offers the widest selection of highly specialized cutting tools. In particular, working with wood is simply impossible to imagine without the use of three main types of drills:
- Twist drills are a sharpened metal spiral, which is used to create holes in wood with a small diameter (8-28 mm), but rather substantial depth (300-600 mm). Due to its spiral shape, such a tool is very easy to remove from the work area after completion of work.
- Pen drills are usually used when it is necessary to create some kind of blind hole in wood with a diameter of 10 mm or more. It should be noted that such a drill can only be used to create holes, since, due to the absence of cutting edges on the side surface, it is simply impossible to drill what is already available.
- Cylindrical (ring, core) drills are widely used to create large diameter holes (from 26 mm). The main advantage of using such drills is the ability to obtain a neat hole without scoring and other defects, as well as high processing efficiency.
General recommendations when choosing drills
When choosing drills for work, you need to pay attention to their appearance. The tool, when it comes to really high-quality, should not have chips, dents, scratches and other defects. The cutting edges must be well sharpened along the entire length and have a uniform color.
When choosing drills, regardless of the material for which they are intended for processing, you need to pay attention to their color - it is easy to determine the finishing hardening processing that was carried out by it:
- Steel gray - no treatment was carried out.
- Black - The drill has been steamed for hardening.
- Golden - the drill has been tempered to relieve internal metal stress.
- Bright gold - a layer of titanium nitride is applied to the surface of the tool, designed to harden it and extend its service life.
It will not be superfluous to note the fact that when choosing a drill, you also need to pay attention to the manufacturer. It is best to give preference to eminent companies that have been on the market for more than one year. Only in this case can counterfeits and waste of money be avoided.