⚙️ Best diamond drills for 2021

Almost no construction project is complete without a diamond drill. This is a professional tool that can easily create a hole of any diameter in mineral materials. The peculiarity of the product is that before work it is not necessary to carry out additional processing with auxiliary means, thereby reducing time costs. However, choosing a good model is not easy; you should know the basic technical characteristics and capabilities of the device. The editors of the YaNashla website have prepared for you a rating of the best drills for diamond drilling for 2021.

Scope of application

The device has a powerful electric motor, unlike standard options. This solution makes it possible to create holes in solid material in a short period of time. In this case, the user expends many times more effort, this is also important to take into account.

The product is often used when drilling load-bearing walls for the purpose of laying electrical wiring. But the product is also used for:

• Proper organization of water supply or heating systems in apartment buildings;
• Arrangement of ventilation systems;
• Creation of niches;
• Installation of air conditioners;
• Conducting a gas pipeline or sewer system.

A diamond drill has good accuracy, which is why it is used to create standard-shaped doorways. Based on almost all technical characteristics, this option is most preferable for use in professional construction. The device is many times better than standard analogues and hammer drills.

Diamond bits are used to operate this equipment. Most of the work is done without the use of stands. The user holds the device in his hands and drills. If you need to make a hole with a diameter of more than 100 mm, then it is best to mount the drill on a construction stand.

Main technical parameters

Regardless of the manufacturer and drilling method, each drilling device has the following parameters:

• Power. The optimal power value is 1500 W. The performance of the tool depends on this indicator. It is also necessary to take into account that the manufacturer often indicates the maximum value. However, professionals recommend not operating the product at high speeds, as the device may fail. If a person is not limited on a budget, it is better to look for products with a power rating of 2000-3000 W so that you can use the device without any problems.
• Weight. This parameter only affects the usability. The lower the weight, the more time a person can hold the device in his hands, which makes it possible to perform a greater amount of work. If possible, it is better to buy a balanced or light version. Heavy products will not reach their full potential.
• Drilling diameter. The parameter specifies the maximum and minimum value of the holes created. This is important to consider, as it affects the correct selection of a diamond bit. Often the maximum diameter is 750 mm, while the minimum value is only 6 mm.
• Features of the cartridge. There are no difficulties here, since there are only two varieties, the first is tightened with a specialized wrench, and the second does not require auxiliary devices for clamping the drill. The latter option is in wide demand, as it allows replacement at high speed.
• Additional features. Each product has auxiliary functions, for example, two-speed operation allows you to quickly create holes of any diameter. In addition, drills are produced with short circuit protection, heating control, speed limit, anti-vibration system, etc. The number of functions affects the final cost of the product. If a person does not need some options, then it is better to refuse them so as not to overpay.

Diamond bit configuration

The new generation of diamond crowns has remained virtually unchanged since their creation. As before, the main elements are:

• cylinder part with a connecting part, the so-called shank - it is designed for connection with drilling equipment;
• the main cutting edge is fixed diamond segments.

There are cylinders for especially delicate work, in which the spraying covers the edge with a continuous layer . They are intended for work on:

• ceramics;
• tiles;
• tiles and other fragile materials.

The diamond layer on the drill bit provides protection and, therefore, savings during operation.

The new generation makes it possible to replace worn segments; as a rule, this procedure is difficult to carry out at home, so owners turn to specialized centers. Such innovations seriously reduce the average market cost, since a small segment must be replaced, and not a whole cylinder. The crown body is practically not subject to mechanical stress, and with proper handling can last for many years.

Types of drilling

Often, when carrying out renovation work in residential premises, “wet drilling” technology is used. This requires a continuous supply of fluid. To do this, a special tank is used, which is connected to the device; it is not necessary to look for deep containers, since only 10 liters are required for operation. This solution is necessary, since water cools the instrument, which eliminates the chance of overheating. In addition, when drilling wet, there is less dirt, which makes it possible not to carry out cosmetic repairs after creating holes. But there are more damp areas, which is a disadvantage.

For dry drilling, you need to buy dust extractors that are installed in the working part. It is also necessary that the drill be equipped with a heating control system so that the device does not break at the wrong time. Often the dry drilling method must be used to create holes in masonry.

Pros of diamond drills

The main advantages of this tool include:

• The occurrence of construction dust is excluded, all work is carried out cleanly;
• The holes created are precise;
• The equipment eliminates the risk of cracks;
• Most models do not make loud noise;
• The walls retain their load-bearing capacity;
• You can create holes at almost any angle;
• The drill can be installed on construction stands, which significantly increases the scope of use of the tool;
• Does not require any special effort;
• Some models are lightweight, which increases mobility.

However, the device has a disadvantage:

• If you drill manually, the accuracy becomes much worse.

Criterias of choice

Diamond drills are used to create holes in hard materials. To carry out such an operation, you can use auxiliary equipment or do everything manually. There are many differences between this device and standard models. In particular, you need to learn how to use the tool correctly so that the holes always turn out smooth.

It is best to select a powerful product with a rating of 1500 watts or more, and the speed should be over 3000 per minute. For convenience, it is possible to use a product with the ability to reverse and adjust speed modes. Auxiliary functions will allow you to carry out work much faster and with better quality.

The choice of diameter is not that important, but it is better for the product to work with a variety of drills, this increases versatility. Therefore, it will be easier for the builder to drill walls, including load-bearing ones.

We must not forget about goals. If a person purchases a tool for home use, then it is better to use cheap devices, the main thing is to buy from well-known manufacturers. For the professional sector, high-price segment devices with several additional functions that will make work easier are suitable. In addition, the drill must withstand high loads and be equipped with overheating control.

Professionals recommend buying a product that has good ergonomics. With such a device, even complex work will become much easier, so there is no need to ignore this criterion.

Possibility of attachment to building posts. To create smooth and beautiful holes, it is necessary to fix the tool on a special stand. Most products support this feature, but there are exceptions. It is important to clarify this parameter in advance so that there are no problems using the device in the future.

The last thing you need to pay attention to is the brand and reviews. Often it is the manufacturer who is the guarantor of quality and durability. However, if the user buys a product from an unknown company, it is necessary to read reviews on the Internet to learn more about the advantages and disadvantages of the device. You should not believe only positive opinions; it is better to read negative ones; they are often written by professionals who have been familiar with the instrument for several months or years.

Selection options

You should buy a drill or any other tool based on its technical specifications.
When choosing a diamond drill, several parameters are important:

• Drilling diameter . Models indicate the minimum and maximum hole sizes - in millimeters. Tools that drill holes of different sizes have an advantage.
• Engine power . Drills are available in power ratings of 1400, 1500, 2000 W and more. The standard value is 1500 W. Larger rates apply to expensive professional models.
• Dust removal . Drills are divided into two categories - dry and/or wet drilling. Wet drilling involves the supply of water during the processing of the material. This function helps to remove the old stuff and make work more comfortable.
• Speed ​​of work . The description for the models indicates the number of revolutions per minute at idle. This parameter may differ significantly for different devices. Mid-price drills stop at 2,000 – 3,000 rpm. Advanced models reach 4,000 or more.

There are also additional options that manufacturers add to make the device user-friendly.

Options include:

• Air channels and pipes, thanks to which a vacuum cleaner is connected to the drill (to remove dust).
• Automatic overload level control system (ensures the drill turns off if it jams).
• Protective fuses against power outages.

In order not to purchase a separate vacuum cleaner for the drill, you should look for models that provide a dust removal system.

Rating of the best drills for home use

Keos KS-130/2

A pistol version that will help carry out repairs quickly and comfortably. To operate, the product is connected to a 220 V electrical network. Power consumption is 1900 W, which is a suitable solution and is suitable for performing average work. The speed of the equipment is 1750 rpm.

For greater convenience, there is a speed regulator, this facilitates efficient use, eliminating early breakdown. Weight – 6 kg. Therefore, you cannot work with this tool for a long time - the accuracy of the holes will be significantly reduced. There are additional functions, such as power button lock, water cooling, electronic motor overload protection, etc.

Sold at a price of 21,000 rubles.

Keos KS-130/2

Advantages:

• Efficiency;
• Sold in a case;
• Smooth start;
• Water cooling;
• Power;
• Safety coupling;
• Speed ​​adjustment;
• Maximum diameter – 130 mm.

Flaws:

• Not found.

MESSER DM100

A good model that will suit every user. The cost is slightly higher than the previous model, but this is compensated by the rotation speed, which is 2100 rpm. per minute At the same time, it can be adjusted.

The weight of the tool is 7 kg, which is also high and is not suitable for long-term manual work. This device does not have any special auxiliary options, but the main ones are: water cooling and overload protection. The model comes in a special case for convenient storage and transportation.

Sold at a price of 23,000 rubles.

MESSER DM100

Advantages:

• Drills well;
• Comfortable handle;
• High-quality assembly;
• Rotational speed;
• Easy to use;
• Supplied in a convenient case.

Flaws:

• Weight;
• Price.

Diam ML-102/2Н

A budget option that can handle hard materials. Thanks to the long handle, the negative impact on the palm is reduced. There is a safety clutch that eliminates the possibility of breakdown.

The product also supports water cooling. The maximum drill diameter is 102 mm, which is the optimal solution for home use. The power of the tool is 1800 W, with a maximum rotation speed of 3600 rpm. per minute for holes no larger than 42 mm. Weight – 12 kg.

Sold at a price of 19,830 rubles.

Diam ML-102/2Н

Advantages:

• Built-in level ensures precise drilling;
• Comfortable handle;
• Durability;
• Good build;
• Doesn't make noise;
• Price;
• Supports wet and dry drilling;
• Protective coupling.

Flaws:

• Weight.

Well-known manufacturing companies

When choosing a tool for work, it would be a good idea to familiarize yourself with the list of the most famous manufacturers of diamond tools. The following brands have established themselves in the global market as producing reliable equipment for construction work.

AEG

One of the famous representatives is the AEG company, founded in 1887 by Emil Rathgenau. The company produces parts for both industrial drilling, focused on laying deep tunnels, and for small-scale construction work. Crowns from this company are compatible with tools from most manufacturers. This was achieved through the use of special adapters – Fixtec. The same system allows you to quickly replace equipment, without the use of additional tools. Adapters are divided into two subtypes:

• with dust removal system;
• standard kit.

The elements are produced using sintering technology; the main part of the crowns belongs to the universal class.

AEG adapter cartridge

Bosch

Crowns from this reputable company are produced using two innovative technologies at once - sintering of diamond edge segments and spraying using galvanism. The pointed edge shape gives additional comfort and ease of work. The improvement gives greater stability to the drill and significantly increases the speed of work.

One of the main distinguishing features of the new generation of crowns is the reduced level of vibration. The manufacturer presents several types of cylinders:

• wet drilling;
• dry drilling;
• for standard work.

Diamond bit Bosch Dry Speed ​​68 mm

In addition to the basic set, the following is provided:

• extension;
• various fastening devices;
• additional precision installation systems during manual work;
• special adapters for liquid supply;
• heads for dust extraction.

There is an opportunity to “renew” segments using a grindstone, as well as a ten-liter storage tank that supplies liquid under pressure.

Cedima

One of the most reputable companies in the construction equipment market, actively promoting diamond drills. Cedima successfully exports its products to dozens of countries. Unique technologies in the manufacture of the drill allow it to be deepened into the rock by five meters.

A wide range of specialized tools can satisfy the needs of both private enterprises and large organizations - the range includes manual units for dry drilling and massive complexes of drilling trailers. A special system for selecting segments and synthesizing diamonds of suitable size with a given configuration of edges makes it possible to process almost all known hard surfaces.

Diamond crown Cedima

HILTI

One of the leading places in the construction equipment market belongs to this company. Founded in 1941, it continues to develop and implement new diamond drill concepts to this day. The real pride of the HILTI company is the unique principle of high-speed rotation of the bit, developed by the best engineers of the company. Built according to special principles, the system makes it easier to work with any material. The secret lies in the pressure distribution mechanism. By feeding it selectively to individual diamond segments, the system forces them to work more efficiently. At the same time, the cylinder rotation speed can reach eight thousand revolutions per minute.

HILTI drilling rigs are compact and have increased productivity. Their use is relevant for large volumes of work.

SPLITSTONE

Russia also does not lag behind its foreign colleagues in this race and has successfully taken its place in the market since 1997. Splitstone develops and produces diamond tools using De Beers powder elements.

When repairing equipment, one of the most advanced methods is used - induction soldering. This method of restructuring damaged segments is recognized as the most gentle in terms of temperature effects. Artificial diamonds are carefully processed, carefully returning to their original shape. Russian equipment is famous for its reliability and adaptability to the conditions of our country.

Diamond drill 037x16x3x7x5x300 granite Splitstone

Rating of the best drills in the mid-price segment

Makita 8406C

Excellent tool for diamond drilling. Despite the low power consumption (1400 W), the product is capable of operating at a speed of 4000 rpm. per minute, which has a positive effect when performing a large volume of work.

The diameter of the diamond crown is 152 mm. Reverse capability is supported. It is powered by an electrical network with a voltage of 220 V. The weight of the structure is 4.5 kg. The set includes a key for fixing the drill, a side handle and a case.

The average price is 30,500 rubles.

Makita 8406C

Advantages:

• Precise holes;
• Light weight;
• Rotational speed;
• Supports reverse;
• Good cooling;
• Convenient case.

Flaws:

• Not found.

Milwaukee DD 2-160 XE

A semi-professional device designed for creating holes in any materials, including metal. It is possible to fix it to a stand, which significantly increases the accuracy of the device. The vibration level is low. During operation, a lot of noise is created, approximately 111 dB, so it is necessary to work only with construction headphones. Especially if the user is in a confined space. The weight of the device is small - only 4.2 kg.

Sold at a price of 39,800 rubles.

Milwaukee DD 2-160 XE

Advantages:

• Performance;
• Life time;
• Weight;
• Suitable for hard materials;
• Accuracy;
• Fastenings to building posts;
• Vibration level.

Flaws:

• It makes noise.

DeWALT D21570K

A tool from a well-known manufacturer, which significantly increases the speed of work and is reliable. There are only 2 operating speeds. Power consumption is 1300 W, but the speed is 3500 per minute, which has a positive effect on performance. Maximum diameter – 127 mm. For greater reliability, there is reverse and electronic overload protection.

Sold at a price of 31,300 rubles.

DeWALT D21570K

Advantages:

• Value for money;
• Assembly;
• Overheat protection;
• Life time;
• Well-known manufacturer;
• Power;
• Convenience.

Flaws:

• Not found.

Rating of the best models

Before moving on to specific models, you should take a closer look at the manufacturers. When buying drills, it is useful to have reference points in the form of well-known and reliable companies.

These include:

• A.E.G.
• Bosch.
• Makita.

• Milwaukee.
• Messer.

Makita 8406C

The Makita 8406C diamond drill has two operating modes: drilling and hammer drilling. The tool works on stone, concrete, wood and metal. The rotation speed is set using an electronic system. The maximum speed reaches 4000 per minute. When using a diamond core bit, the drilling diameter is 150 mm. The device weighs 4.5 kilograms.

Pros:

• High power level (for its class) of 1400 W.
• Reliable fixation of equipment using a key chuck.

• Ventilation holes for heat dissipation.
• The cord is 2.5 meters long.

Denis
I use this unit to drill slate, brick and sometimes stone. I am 100% satisfied with the quality of work. The drill does not vibrate, starts smoothly and passes through all materials without complications.

Vadim
I was looking for a machine that could cope with drilling reinforced concrete. Rotary hammers are not suitable, drills are expensive. The Makita drill helped out with its durability and reasonable price.

AEG DB 1500-2 XE

The professional drill AEG DB 1500-2 XE was developed specifically for dry diamond drilling. The tool program supports two operating speeds and a soft impact mode. The maximum operating speed of the device is 3000 rpm. Drilling is carried out at a power of 1500 W. The weight of the drill is 4.2 kilograms.

Pros:

• The presence of a metal gearbox, which increases wear resistance.
• Maintains a high number of shocks under high loads - 48,000 strokes per minute.

• Possibility to change the position of the side handle depending on working conditions.
• Safety coupling as additional protection.

Ivan
Drel holds speed well under load and does not lie like a dead weight in his hands. The case is good for frequent carrying, but the cord was too long for me.

Konstantin
I became familiar with this drill only when I started working with a vacuum cleaner. I was pleased with the handle, which was made of metal, not plastic as usual. The thing is effective, but very noisy - you can’t work with it without headphones.

Fortezzo SCY-1520/2BS

The Fortezzo SCY-1520/2BS diamond drill is designed for working with reinforced concrete, stone and brick. Thanks to the universal motor design, the device can be used manually or using a stand. The tool offers two speed modes. The maximum operating speed reaches 2770 rpm. The device weighs 12 kilograms.

Pros:

• The control panel is protected from moisture.
• Stepless speed control allows you to smoothly switch modes.

• Operator protection prcd.
• The drill comes in a suitcase with all accessories.

Vasily
I work with a drill by hand, which is a bit difficult. The instrument itself is strong and of high quality. Works great on both brick and concrete.

Alexander
I have been using this drill for more than three years - with and without a stand. I tried it on a variety of materials - from reinforced concrete to ordinary brick. So far I have not found any disadvantages for myself.

BOSCH GDB 2500 WE Professional

The BOSCH GDB 2500 WE Professional drill is one of the most powerful professional-class tools. The device breaks all power records and reaches a level of 2500 W. The drill makes holes from 32 to 212 mm and operates at two speeds. The tool was created for working on reinforced concrete, but is also suitable for working with other materials. When drilling reinforcement, it prevents the propagation of cracks. The weight of the drill is 11.8 kilograms.

Pros:

• Constant-Electronic system: maintains stable speed as load increases.
• Reduction of dust and sludge due to the flow of water into the bit (“wet drilling”).

• Simplified procedure for replacing carbon brushes.
• Reduced vibration due to built-in current limiters.

Anton

I worked with this monster for several months under construction conditions. In terms of power, no drill can compare with it. A separate advantage is the absence of dust during drilling. During the entire period of operation, the instrument never malfunctioned or turned off.

Milwaukee DD 2-160 XE

The Milwaukee DD 2-160 XE drill is designed for dry hole drilling. The diameter of these holes ranges from 32 to 82 mm - when processing reinforced concrete. For ordinary concrete and brick, the permissible diameter increases to 132 mm. The maximum speed of the tool reaches 3,000 rpm. The device operates in two modes. The weight of the drill is 4.2 kilograms.

Pros:

• Enhanced tool and operator protection due to mechanical and electronic clutch.
• Effective dust removal using a quick-release dust extraction system.

• The soft impact function makes the bit work smoothly during the drilling process.
• The micro-impact feature makes Diamond Hit crowns resistant to any material.

Gleb
I looked for this drill in stores for a long time, I had to buy it on the Internet. I liked the instrument for its weightlessness - compared to other heavyweights. Sometimes it overheats when drilling reinforced concrete. Otherwise, it copes with all tasks.

Mikhail
I was pleasantly surprised by the build quality and the metal body. During operation, the machine practically did not break the drills. The speed regulator is conveniently located. The 4 meter cord eliminates the need to run around for extension cords.

Messer DM 100

The Messer DM 100 drill is designed for processing concrete, brick and stone. It can be used both when drilling by hand and with an additional stand. The motor power of the device is 1500 W at two operating speeds (950 and 2,100 rpm). The maximum drilling diameter when processing reinforced concrete is 80 mm. The motor housing is made of metal. The weight of the drill is 7 kilograms.

Pros:

• Shoulder rests and side handle for comfortable drilling by hand.
• Built-in electric shock protection system.

• Availability of additional side handle.
• Drilling option with water supply to prevent the spread of dust.

Paul

I was looking for a budget drill for working on concrete. I had never heard of Messer before, but decided to take a chance. The tool drills well, but working with it is not very convenient due to the short cable - only two meters.

Makita DBM131

The Makita DBM131 drill is used for drilling holes in materials of special strength. Working attachments for the tool are supplied in the form of diamond-coated drill bits. The maximum diameter of the crowns is 132 mm. The tool provides two drilling options (dry-wet) and two speed modes. At idle, the device accelerates to 2,000 rpm. The weight of the drill is 6 kilograms.

Pros:

• Built-in electronic torque limiter + speed control system.
• Double protective insulation.

• Fixation of the switch for comfortable continuous operation.
• A release clutch that is activated when the tool jams.

Nikolay
The first thing I looked at when choosing was the presence of a coupling. The drill is fully suitable for this parameter. The only drawback is expensive consumables. But for a high-quality device this is natural. In terms of ergonomics, the model is very successful.

Vadim
I bought this drill because I have known Makita for a long time and am completely satisfied with the tools of this brand. The new device also turned out to be a successful purchase - it works without overheating, without breakdowns and without surprises.

The choice of a diamond drill is made taking into account the goals and specifics of the work. For some buyers, the light weight of the tool and the length of the cord are important. Others focus on the presence of a wet drilling option. An equally important criterion is the price of consumables that will need to be purchased while using the drill. If the master specifies all his requirements for the device, he will be able to buy a model that will last for many years.

Top professional models for complex work

EIBENSTOCK ETN 162/3

A professional tool that will make complex operations easier. The power is 2200 W, while the rotation speed is 2500 rpm. For convenience, the speed is adjustable, the number of steps is 3. Drill diameter is 202 mm. To ensure the product is safe, a safety lock is provided. You can monitor the condition of the engine during operation thanks to the overload indication.

Sold at a price of 92,000 rubles.

EIBENSTOCK ETN 162/3

Advantages:

• Durability;
• Performance;
• Three speeds;
• Weight;
• Rack mounts;
• Rubberized handle;
• Reliable grip;
• Switching between operating modes.

Flaws:

• Not found.

DeWALT D 21583 K

The product is equipped with a built-in flushing joint, which makes it possible to drill holes up to 152 mm. Three speeds are supported, where the minimum value is 1000 revolutions and the maximum is 4600. The power of the tool is 1910 W. For greater convenience, there is a soft start and an ergonomic handle that transmits minimal vibration to the hand.

The average price is 87,450 rubles.

DeWALT D 21583 K

Advantages:

• Long work;
• Control;
• Convenience;
• Built-in flushing joint;
• High-speed replacement of brushes;
• Lever;
• Electronic adjustment.

Flaws:

• Not found.

Bosch GDB 180 WE Professional

A device that lives up to its name. Thanks to this drill, the operator will carry out complex operations. The drilling diameter is 180 mm. For greater convenience, there is a speed control. The power of the product is 2000 W. Thanks to the design and assembly, the service life of the tool is many times higher than that of competitors.

The average price is 98,200 rubles.

Bosch GDB 180 WE Professional

Advantages:

• Compactness;
• Power;
• Start-up protection;
• Two drilling modes;
• Work resource;
• Durability;
• Adjustment;
• Suitcase included;
• Lever.

Flaws:

• Price.