Hammerless drills: features and tips for choosing

A modern drill is endowed with many functions: it drills holes in various materials, performs the work of a screwdriver, tightening fasteners, with its help you can grind and polish wood, mix solutions. Today, hardware stores have an unprecedented range of hammer drills, and this abundance only complicates the choice. Before purchasing a drill, you need to think carefully about the purpose for which it will be used. Then study the types of tools, specifications, additional functions. This knowledge will help in choosing the right model.

The torque of the drill depends on the electric motor, with the help of which the rotor moves the gearbox and the spindle, increasing or decreasing the speed. The tool has a function for cooling the engine. The drills are mounted on a chuck that is held on the spindle. The drill is started using a start switch, which is also a speed regulator. Chucks, on which drills and other working tools are attached, are quick-clamping and those that are tightened with a wrench.

Knowing what work to be done, you can choose a drill according to the technical characteristics. Let's dwell on them in more detail.

The more powerful the electric motor, the more active, longer the drill works, and the tighter the obstacle can be overcome. It is suitable for drilling heavy structures, long continuous working period. The speed of rotation and the price of the product depend on the power of the motor. Those who are not financially constrained may decide that for household purposes, just in case, it is better to choose a model with a powerful engine, since you do not know in advance what you will need to do in everyday life. But such a tool will turn out to be quite heavy. When assembling furniture or doing home repairs with a drill, the load from a heavy tool can be felt very quickly. Therefore, it is better to choose the best option in terms of power and weight ratio.

The more revolutions per second the drill makes, the faster it rotates and the more intensively it produces holes. If you have to make many small holes while working with different simple surfaces, a high speed of rotation will be very useful. The rotational speed of hammerless drills is 2500-3500 rpm. The higher the intensity, the better, but sometimes it is necessary to reduce the speed, for this purpose a speed regulator is provided.

To extend the life of the electric motor, do not violate the specified drilling parameters. The instructions should indicate the maximum sizes of drills intended for materials of different densities. An unforeseen drill diameter and material strength will increase the load on the motor and can damage it. And the torque characteristic is also important, which determines the screwing of screws into materials of different densities. If the drill is also purchased for construction mixes, a model with a higher torque should be selected.

Drills can be used for household, periodic use or professional, for daily use.

This type of drill is used not only in production, some acquire it for home purposes when more extensive work is needed than just assembling furniture. They are used for the construction of summer cottages and outbuildings, capital prolonged repairs, when work is required with solid concrete surfaces. Professional drills have a high motor power and are able to withstand prolonged and heavy loads. The intensity of the work of such a tool is 10 hours without harm to the engine and main components.

Household drills are unable to withstand a strong continuous load, work with too hard surfaces. But they have a lot of their own advantages: they are ergonomic, lightweight, easy to hold, and cost much less than a professional tool. The different types of tools include AC and cordless drills. Each of them is designed for specific working moments. The durability of the tool depends on the quality of the assembly, and the service life depends on the construction skills of the owner of the drill.

The mains include a hammerless drill powered by an outlet. She needs a stable supply of electricity, since the tool can fail from voltage surges. When buying a drill, it's best to think about a stabilizer right away. The network model does not need to be replaced and the battery is charged, this is its plus. The downside is the inability to use the tool in places where there is no power supply.

The battery-powered drill is quite mobile, it is convenient to work with it on the street, in the country, in places where there are no outlets. A charger usually comes with a drill, it is necessary to maintain two batteries, when one is hooked up, it is put to charge, and work continues with the second device. Cordless drills are also capable of high revs. For convenience, they are equipped with reverse rotation (reverse function), which makes it possible to screw in and out the fasteners.

Drills can be equipped with one of three types of batteries:

• nickel-cadmium - it does not have enough power for long-term stable operation, but it is affordable in price;
• nickel-metal hydride - slightly better than the previous one, but it is afraid of low temperatures, such a drill is not suitable for winter work on the street;
• lithium-ion is the most expensive and the best battery, it can work for a long time without needing to be recharged.

In addition to the main action - drilling, hammerless drills have various additional functions. Before purchasing a tool, you should carefully familiarize yourself with them and understand what you may need in the upcoming use.

• The reverse function is very important for any drill, with its help reverse rotational movements are performed. If the drill is stuck in the work plane, it can be easily pulled out this way. Hammerless drills are also screwdrivers at the same time, so the reverse becomes a mandatory option, allowing you to unscrew the fasteners from the surface.
• In order to be able to quickly change the working tool, they purchase a model with an auto-lock function. By the way, for the same purpose, they choose drills with keyless chucks.They are found in all cordless tools. This saves time for retooling. Although it is the key cartridges that are more reliable and can withstand a heavy load.
• You can choose a model with electronic techno control over various working moments. For example, such a drill allows you to monitor engine overheating, drill rotation speed or excessive load, and more.
• Tools with an additional handle are more convenient, they can be held with two hands, which makes work easier and more efficient.
• Sometimes a scale indicating the drilling depth is mounted in the additional handle. It looks like a bar, which, at the required drilling level, blocks access to the surface and does not allow you to go deeper.

After reviewing customer reviews, we can conclude that two models are especially popular.

• Makita DP4010 Electric Two-Speed ​​Drill Japanese production. It has a key cartridge and 720W power. The cost of such a model is about 9 thousand rubles.
• Electric drill Metabo BE 751 600581810 made in Germany, with a keyless chuck, maximum torque of 30 Nm, two speeds and a motor power of 750 W. It costs about 15 thousand rubles.

For information on how to choose a hammerless drill, see the next video.