Rating of the best low speed drills for 2022

Drills operating at low speeds belong to the category of professional tools in the construction industry. Due to their enormous power and operation at low speeds, these drills are used for mixing concrete and drilling holes of large diameters in solid substrates.

Purpose of low-speed drills

The samples of equipment under consideration can also be referred to as drill mixers or low-speed ones. Due to their low speed operation, they don't make as much noise as their high speed counterparts. This type of tool will be indispensable when increased torque is very important for the workflow. And such processes can include:

Mixing various substances for the preparation of special solutions (it is better to do it with a drill with a mixing nozzle);

• Performing thread cutting;
• Drilling holes with a large diameter in hard materials, such as concrete or wood;
• Pipe flaring - this procedure involves the deformation of the pipe, due to which a tight connection between the pipe and the tube sheet will occur.

The tool in question is most often used in production when performing large amounts of work. These devices are characterized by a large power reserve, and due to the high torque, excessive heating does not occur even with intensive use of the equipment.

IMPORTANT! The use of a powerful engine in the design of the equipment significantly increases its weight.Thus, it is necessary to install several handles on the body at once in order to make it easier to hold.

Fundamental Parameters of Slow Speed ​​Drills

The essential and main advantage of low-speed drills is their ability to endure huge loads during a long period of operation. The main technical characteristics of the equipment in question include:

• Power - it can be in the range from 700 to 1800 W, which indicates an increased power of the tool, because such initial indicators for a classic drill start from 250 W;
• The maximum number of revolutions - this figure ranges from 130 to 650 revolutions per minute, which is fundamentally different from the classic models, in which this parameter can reach up to 2600 revolutions per minute;
• Equipment weight - the tool in question is quite heavy, so its weight can be, on average, from 3 to 4.5 kilograms. It is worth noting that it can be difficult for an unprepared person to work with him for a long time;
• Speeds - their number can be from one to three;
• The diameter of the cartridge - this figure is also large and can vary from 16 to 28 millimeters.

IMPORTANT! Some models of the products in question can be equipped with a setting for adjusting the output speed, which will effectively affect the convenience of work.

Drill mixers as a separate type of tool

They are worth mentioning separately, because they combine the functions of a mixer and a low-speed drill and are great for mixing various viscous mixtures. Usually, such models are classified as premium, which indicates their high price.Thanks to various and varied nozzles, increased power and the presence of a regulator of operating modes, such a tool can perform both shock work on making holes in solid walls and other solid structures, and it is also able to mix viscous solutions with equal success. When working with powerful low-speed models, they should be selected in such a way that their weight corresponds to the size of the holes being made. The presence of modern electronic filling in drill mixers is also an important working factor. With the help of an electronic control unit, it is possible not only to simplify the whole process, but also to extend the life of the working drill. For example, some samples are equipped with a trigger force sensor. The higher the pressure, the more revolutions the tool gives out, and this will already allow you to quickly stop it in a critical situation. Drill mixers are also good because when performing significant amounts of work, even at high power, they do not overheat. For example: if you try to perform intensive work with a standard drill at high speeds for a long period of time, then the chance of it breaking is very high.

Unlike standard slow-speed drills, mixer drills have other average technical parameters:

• Power ranges from 0.9 to 1.6 kW;
• The rotation rate is from 400 to 650 revolutions per minute;
• The mass of the tool can vary from 3 to 4.5 kilograms;
• Drilled holes can have a diameter of up to 3 centimeters.

Classification of low-speed models by power sources

The electric motor in the types of drills under consideration can be powered both from rechargeable batteries and from a 220 V household mains.Batteries for this type of equipment can be made on the basis of combinations of metals for electrode plates:

• Nickel-cadmium;
• Nickel metal hydride;
• Lithium-ion.

The last two types of batteries are considered particularly environmentally friendly. Lithium-ion models have the lowest self-discharge rate. Nickel-metal hydride batteries (with proper use) have the longest guaranteed discharge / charge cycle. Nickel-cadmium samples tolerate lower temperatures better than others and are cheaper, but in order to charge, they will first need to be completely discharged. The main task of low-speed drills with batteries is to provide their owner with independence from wires and a stationary network, providing conditions for completely autonomous operation.

Impact and non-impact low-speed drills

In classical electric drills, the rotational movement of the motor rotor is transformed into the translational rotation of the drill by means of a pneumatic or mechanical impact servomechanism. The first type is considered more efficient in terms of operational efficiency, so it is used for most of the most common examples of this equipment. A ball bearing or a crank assembly transforms the rotation of the motor rotor into an accelerated reciprocating movement of the piston in a sealed cylinder. A large ram translates the piston movements by means of compression in the air between them and strikes the striker with the reverse side, which is connected to the moving spindle, where the cartridge with the drill fixed in it is installed.

The return of the energy impact becomes rather insignificant due to the large weight of the tool itself and due to the small clamping force applied by the operator, as well as due to the presence of a free longitudinal movement of the drill in the cartridge. To fasten the drill, special SDS cartridges are used. Among other things, such a device is equipped with a variety of mechanisms that are responsible for the comfort and safety of operation. A spring-cam or friction clutch locks the chuck when the drill is jammed, while the operator remains protected from recoil and at the same time the motor is protected from overload. Existing systems that are responsible for damping vibrations make it possible to reduce it qualitatively, making the operation of the electric drill not only convenient, but also harmless to the health of the operator. For these purposes, rubber gaskets or spring dampers are used.

In low-speed models, the percussion mechanism is simpler. It has two ratchets, one is permanently motionless, and the second turns around simultaneously with the spindle. With simple drilling, both ratchets are separated by a stopper and do not touch. The stopper is removed to turn on the shock operation mode, therefore, when pressure is applied to the tool, the ratchets interlock with wedge-shaped teeth. As a result, the spindle chuck receives an additional linear movement of a few millimeters forward by slipping the wedge-shaped teeth of the ratchet. Such a principle of achieving shock rotation of the drill will require the application of extreme muscular effort on the part of the operator. This method is characterized by high returns, which will certainly lead to rapid fatigue of the employee.At the same time, prolonged operation in this mode will lead to deformation of the teeth of the ratchet, which will negatively affect the efficiency of work as a whole. From this it is clear that a low-speed drill is not recommended to be used for a long time in shock mode.

It is worth noting that it is not so often necessary to use the shock mode to work with brick, stone or concrete. However, accuracy will always be needed. But it is easy to provide it with impactless tools, which are characterized by a small mass and are more convenient to use.

Choosing a low speed drill

First of all, it is necessary to determine the complexity and scope of the upcoming work. Lightweight mechanisms with a power of 0.7 to 1 kW have everything you need for small finishing work. But for a major overhaul, especially when building from scratch, powerful drills with a power of 1.5 kW or more will be required. However, for most construction work it is possible to use a universal mixer drill at quiet speeds. Their modern models have in their design a special microelectronic system that will provide:

• Comfort of working process;
• The safety of the employee and others;
• Flexibility of adjustment for any task;
• Extended tool life.

When a decision is made to purchase a low-speed drill, attention should be paid to the selection of multifunctional nozzles for it. Almost all modern models of drills are equipped with spindles with a unified thread. Thus, it is possible to talk about the interchangeability of nozzles, regardless of the equipment manufacturer. Additionally, you should pay attention to the presence of a clutch with a mechanism that allows you not to use a key.It is also not difficult to pick up both a drill and a stirrer for such a drill, due to the uniformity of some functional mechanisms in the design.

Selection of a low-speed drill for timber

According to generally accepted settings, the electric motor of the drill, with which the timber is drilled, must be powerful enough. This property should allow working with holes of large diameter and increased depth. Naturally, a high-speed drill is almost not suitable for making holes with the above characteristics. As a standard, it is worth proceeding from the following averaged parameters: to break through a pine board with a twist drill with a diameter of 2.5 centimeters, it must be inserted into a drill with a power of at least 0.8 kW.

It is preferable to use a tool that can operate at several speeds. For example, to build a house from scratch, you need a drill with a power of at least 1.3 kW. Professionals advise using models with a gearbox in three stages. If the equipment is powered from a stationary network, and work is carried out in cold weather, then it is better to use an electric cord with the thickest possible winding - it is considered more reliable.

Popular manufacturer in Russia

As the review of the tools present in the considered segment of the market shows, the ZUBR brand is very popular. Although this brand is of Russian origin, the tools are assembled in China. However, this fact does not mean poor quality, and users are increasingly confirming the convenience and comfort of working with these tools.

Rating of the best low speed drills for 2022

Budget segment

3rd place: ZUBR ZDM-820 RM

This professional tool has an advanced design.It is used for making holes in wood, metal, brick, as well as for mixing paints, various mortars and concrete. The chuck on the key contributes to the correct fixation of the nozzles. The additional handle can rotate, which provides convenient operation. The recommended cost for retail chains is 5700 rubles.

• Innovative design;
• The motor is resistant to overheating;
• The cartridge on the key securely fixes the nozzles;
• The metal case of a reducer is calculated on long service;
• Easier access to brushes for self-replacement;
• Reverse available;
• Turnover is regulated electronically;
• There is a fixation of the "Start" button for long-term use.

• Weak body plastic.

2nd place: Interskol D-16/1050R2

This tool has a powerful and reliable motor. The size of the chuck with a key is 16 mm, which makes it possible to work with large nozzles. The metal case of a reducer guarantees long operation of the device. Two handles provide comfortable and safe work of the operator. The recommended cost for retail chains is 6,700 rubles.

• Keyed chuck for proper tooling installation;
• The presence of a reverse;
• Fixing the switch in working condition;
• There is a hole in the wire base for a cartridge key;
• The gearbox housing is made of light alloy;
• Additional D-shaped handle increases the security of holding;
• The diameter of the installed drill is from 3 to 16 mm;
• The maximum drilling diameter in wood is 35 mm;
• The maximum drilling diameter for metal is 16 mm.

• Somewhat uncomfortable grip on the handle.

1st place: "Interskol D-16/1050R2 and mixer"

This tool is designed for time-consuming and lengthy drilling of hard materials. The chuck of the electric drill is made according to the technology of a lock with a key. Drills from 3 to 16 mm are suitable for the device. There is an additional handle located at the back, which qualitatively reduces the applied pressure. Use is possible with various nozzles, including a mixer-equipment designed for mixing various substances. The recommended cost for retail chains is 7200 rubles.

• Used for labor-intensive and long-term work;
• Equipped with a reliable and powerful electric motor;
• Characterized by high performance;
• There is a 16 mm cartridge on the key;
• Shows confident work with large nozzles;
• Able to withstand high loads;
• It has two additional handles - D-shaped and straight.

• Not detected.

Middle price segment

3rd place: ZUBR ZDM-1200 RMM2

This 1.2 kW drill mixer is ideal not only for making holes, but also for mixing various mixtures and paints. It is convenient to adjust the spindle speed. The advantage of the device is the presence of the reverse function. The torque of the tool is 160 Nm: this parameter makes it possible to make holes of large diameter and depth. The maximum diameter for a hole with a tool using a 16mm chuck is 40mm. The kit includes an additional handle and a chuck key. The recommended cost for retail chains is 7600 rubles.

• Reducer design improved;
• Gears are made of a special alloy and hardened;
• The loss of lubrication is prevented by a closed space near the gearbox;
• There is a function of independent shutdown of brushes;
• The resistance of the motor to overloads has been significantly increased;
• Greater stability of the geometric parameters of the transmission is provided by a steel case;
• The chuck with a key fits a maximum diameter of 16 mm, which means that nozzles with any shanks can be connected;
• There is an auxiliary ergonomic handle;
• Fast replacement of brushes is provided.

• Weak plastic parts.

2nd place: Interskol D-16/850ER

This sample can be used both for mixing different solutions and for drilling holes. It will be an excellent solution for professionals, it is powered by the mains. It is connected by means of a wire of optimum length. The design provides a reliable and powerful electric motor that can withstand heavy loads. The manufacturing company notes the special ergonomics of the model, due to which it is really convenient to work with the equipment. There is an auxiliary handle for a secure fit in the hands. There is also a lock for the starter. The gearbox housing is made of durable alloy and ensures a long tool life. The power of the tool is 850 watts. The maximum rotation speed is 1000 rpm, but it can be adjusted as needed. It has a reverse function - it is possible to start the rotation in the opposite direction. The kit includes an auger whisk, a drilling depth gauge, a second handle, an extension rod for auger installation, a wrench for C17. The recommended cost for retail chains is 7900 rubles.

• Has a starter lock;
• There is a special two-stage auger;
• Quick clamp chuck is designed;
• Excellent overall ergonomics;
• Special gearbox for transmitting "high torque" forces;
• Electronic speed control for working with various materials.

• Not detected.

1st place: Rebir UM2-16/1200ER

This machine is used for drilling holes in wood, metal and plastic. Thanks to the possibility of speed control, it is easy to find the ideal working mode for any material. The three-stage gearbox is enclosed in a steel case, which will serve a long service life of the electric drill. Thanks to the reverse switch, it is very easy to remove the drill from the hole or unscrew the screws. The recommended cost for retail chains is 8100 rubles.

• Powerful electric motor;
• Reducer on three steps;
• Side handle with soft coating;
• Main ergonomic handle with rubber grip;
• Possibility of application as a construction mixer;
• Lock key for continuous operation.

• Not detected.

Premium class

3rd place: "Sturm! ID20165M"

This sample is perfect for capital work. It will allow you to drill holes in plastic, metal and wood, and can also stir various building materials. The spindle has a Morse taper and can transmit increased torque, which makes it possible to use nozzles with a tapered shank. Three stable handles provide the best control over the device. The metal reducer greatly extends the service life of the device and properly discharges overheating.The recommended cost for retail chains is 9500 rubles.

• Rubberized handles make the grip more secure.
• Easier access to brushes for self-change;
• The presence of a reverse makes the extraction of the drill safe;
• Rotation frequency is adjustable;
• There is a fixation of the "start" button in the on state.

• Not detected.

2nd place: "Rebir IE-1023A-16/1300"

This sample is intended not only for drilling holes, but also for mixing different building substances, but also paintwork materials, for which you only need to fit the appropriate equipment. The "Start" key can be fixed in the on position, which will ensure long drilling. The main and secondary handles are equipped with soft lining, making it much more convenient to work. The device works with drills with conical shanks in diameters from 14.5 to 23 mm, and with a transitional mandrel and chuck (which are included) - with cylindrical shanks. The recommended cost for retail chains is 10,600 rubles.

• Aluminum gear case;
• High torque;
• Dustproof switch;
• Traditional key cartridge;
• It is possible to install drills with Morse 2 shanks;
• There are auxiliary and main handles;
• Fixing the "Start" button for continuous use;
• Installation in a fixed position is possible;
• The maximum drilling diameter for plastic and wood is 65 mm, and for metal 23 mm.

• Not detected.

1st place: "Rebir IE-1206-16/2000ER"

This model is designed to work with hard materials, which include steel, non-ferrous metals, wood and plastic.The device uses a shockless type of operation, has an increased power of 2000 watts. The speed of revolutions reaches a rate of 500 units per minute. A key chuck is used. The maximum expansion diameter of the cartridge is 16 millimeters. It has a reverse twist function, which will be very useful when removing a stuck drill from a hole. The package includes an auxiliary handle, which is designed to provide a secure grip for the operator. The function of abrupt stop of the spindle simultaneously stops the drill, in case of emergency situations. Power supply - from the mains at 220V, to which it is connected via a cable, whose length is almost 2 meters. The recommended cost for retail chains is 15,600 rubles.

• Reducer on three steps;
• Powerful motor for excellent performance
• Basic ergonomic handle with rubber grip;
• In the presence of "native" mixing equipment, the device can be used as a mixer;
• The key for fixing work in the "without interruption" mode is available;
• Possibility of setting in a fixed position;
• The maximum diameter of the cutting part of the drill: for plastic and wood - 70 mm; for metal - 32 mm.

• Very high cost.

Instead of an epilogue

A slow speed drill is a tool in the arsenal of professional builders, so its choice should always be based on the principles of usefulness and quality. Such devices, due to the reduced rotation speed, show very decent power. With the help of this equipment it is possible both to mix concrete and to make holes of large diameter in solid material.Also, low-speed electric drills are also good because they are slightly susceptible to overheating when performing large amounts of work.