Choosing a low-speed drill

Low-speed drill belongs to the category of professional construction tools. Due to the small number of revolutions and enormous power, such an apparatus is used for mixing concrete and drilling large-diameter holes in solid materials.

Purpose

Low-speed drill is designed to work in cases where a high torque at the tool is strictly contraindicated. These cases include:

• thread cutting;
• mixing mixtures;
• drilling large holes;
• flaring pipes.

Flaring pipes - the process of deforming the pipe, during which there is a tight connection between the pipe and the tube sheet.

When the volume of work is large enough, due to the small torque and high power such a drill does not overheat. Performing such work with conventional tools can lead not only to overheating, but also to engine burnout. Since low-speed drills are quite heavy, they are usually equipped with two handles.

Main characteristics

The low speed drill has the following main characteristics:

• instrument power - from 900 W to 1600 W;
• the number of revolutions per minute - 400-650 rpm;
• weight - 3-4.5 kg;
• the number of modes of operation - 1-3;
• drilling diameter - up to 28 mm.

The low speed drill can withstand heavy loads for a long time. Thanks to these qualities, it is used for carrying out voluminous work.

Kneading glue with a low speed drill

All drills should be divided by type of intended load.

1. Lightweight apparatuses - for interior fine finishes. The average power of 700-1000 watts.
2. Heavy vehicles - for major construction work. The average power of 1000-1500 watts.

When choosing a new tool, you should carefully consider the process of selecting the necessary characteristics. The higher the power, the higher the weight of the device and, accordingly, the price.

Drill mixer

We should also mention the professional tool drill mixer, which combines the functions of a low-speed drill and a mixer for mixing viscous solutions. As a rule, such models belong to a high price category.

Due to the presence of a variety of nozzles, high power and mode selector, such a tool is able to perform both percussion work on drilling concrete walls and other durable structures, and to mix various mixtures.

Choosing a powerful low-speed drill, you should also pay attention to its weight and maximum drilling diameter.

An important selection criterion is the presence of modern electronics on the mixer drills. In addition to the obvious convenience and safety, having the ability to change modes of operation will allow you to extend the life of your equipment. Some models are equipped pressure sensor on the start button. The stronger the pressure on the button, the greater the number of revolutions begins to issue apparatus. This is true for the reverse situation.

The main advantages of tools equipped with an electronic system include:

• convenience;
• security;
• increased service life;
• overload protection.

How to pick up the nozzle

If for any reason there was no attachment in the device kit, it is important to know how to choose it correctly.Most models have a special standard thread on the spindle, which allows you to securely fix the nozzle. This standard has been adopted by many large manufacturers and, at the moment, it is not difficult to choose a suitable nozzle.

Many models are equipped movable coupling with self-locking mechanism. The key for such tools is not required, and the diameter of the drill or mixer can be selected independently using the information specified in the instruction manual.

Movable coupling with self-locking mechanism

The maximum size of the nozzle sets the manufacturer. This indicator depends on the technical characteristics of the device.

Manufacturers Overview

Today, there is a wide variety of choice of low-speed professional drills on the market. Consider the most popular manufacturers and some models of the tool.

ZUBR

Russian company specializing in the production of construction tools. Due to its robust design, wide model range and relatively low price, devices of this manufacturer are very popular in the Russian market.

Drill mixer ZUBR ZDM-1200

The most popular model: ZUBR ZDM-1200.

• power tool - 1200 watts;
• torque - up to 850;
• weight - 4.5 kg;
• maximum nozzle diameter - 16 mm;
• class - professional.

Makita

A Japanese company that was able to conquer the market of building tools with high quality and long service life. Due to the high technical characteristics, the tools of this brand are perfect for professionalswhich assume to use the equipment quite long time.

The most popular model: Makita 6014 BR.

• power tool - 850 W;
• torque - 550;
• weight - 2.5 kg;
• maximum nozzle diameter - 16 mm;
• class - household.

STURM

Chinese-made equipment. In the model range there are tools, both low and high price category. As a rule, tools of this brand have smaller dimensions and weight, with relatively identical specifications. Devices of this brand can be a great helper for both professionals and amateurs.

Drill-mixer Sturm ID20131

The most popular model: STURM ID20131.

• power tool - 1100 W;
• torque - up to 800;
• weight - 3.5 kg;
• maximum nozzle diameter - 16 mm;
• class - professional.

Interskol

This company has its own production plant in Russia. This reduces the cost of transporting equipment and thereby reduce prices. Tools are different good basic equipment: a wide variety of accessories, additional pens, etc.

Drill Interskol D-16 / 1050R

The most popular model: Interskol D-16.

• power tool - 1050 W;
• torque - up to 550;
• weight - 3.8 kg;
• maximum nozzle diameter - 16 mm;
• class - professional.