[ 2021 Edition ] Top 10 Best Angle Grinder For Concrete

The advance in the technology of the power tools allows us to have products without cable, but that conserves all the necessary power to realize works, without any problem. 

This is what happens with modern cordless grinders, whose batteries guarantee the necessary rotation to obtain high-quality results for any type of work you need. 

Among the best angle grinder for concrete, we highlight the Bosch GWS 18-125 V-LI Professional model, the user’s favorite.

Favorite both for its power, capable of developing up to 10,000 revolutions per minute, as for its lightweight of 2.3 kilos that guarantees maximum comfort during operation.

 If you prefer a simpler model, you are probably interested in the Powerplus POWX0079LI model.

 In this case, we talk about a cordless grinder with less than 2 kilos of weight, an engine capable of rotating at 7000 revolutions per minute and a double handle system that gives you all the comfort you need.

What is the best angle grinder for concrete on the market?

To polish, to sand, to cut or to polish. These are some of the tasks we can do with a grinder, just by changing the type of disc we have mounted on it. 

This versatile tool is essential for any handyman, although for your purchase to be perfect, we recommend you follow the advice of our guide to buying the best angle grinder for concrete. 

You make an informed, economical and profitable purchase.

 

DIY lovers know that it is possible to do all kinds of repairs at home with our own hands, and when cutting, polishing, and roughing wood, metal, and all sorts of robust materials, a cordless grinder is the most efficient tool. 

If you are looking for one, you may find this selection that we have made cautious so you can buy the best angle grinder for concrete in the current market.

 

Best angle grinder for concrete

Rank # 1:Bosch 4-1/2-Inch Angle Grinder

Considered one of the best equipment, this model not only offers quality and guarantee when manufactured by the renowned Bosch brand but also provides efficiency thanks to the power of its engine and the ability to perform work on different types of surfaces.

Main Features  

Power

This model can operate with an electric potential of 18 volts, which gives your engine enough strength to perform all the remodeling and DIY work that you propose precisely and achieve excellent results when running them.

Thanks to the strength of its engine, the device can make 10,000 revolutions per minute. This allows the team to maintain the right level of performance so that you manage to accomplish each of your projects without problems.

The motor of this equipment has a load capacity of 4 poles, a feature that contributes to the increase of its useful life, so you will be able to use it for a significant amount of time. Also, it is efficient and robust, so it provides high performance when starting.

Battery

When acquiring a work tool, you need to look at the level of mobility that you will have when using it, because it will depend on being able to fulfill all the tasks that you propose even when it is necessary to execute your projects in those areas of the house that are of difficult access.

It has been manufactured to give you more freedom when doing your jobs, and this is because it has a battery that will allow you to use it without keeping it connected to a power source.

The batteries are CoolPack and can efficiently dissipate the thermal sensation. This contributes to extend its life its useful life 100%. Two batteries are included, so you can use one and charge the other, or use it when you need an extra charge to complete your projects.

Design

This Bosch model has a compact design, so it will be possible to hold it more comfortably and without having to make much effort, this will allow you to complete your work with ease, its dimensions are 44.4 x 36 x 15.5 cm and apart It is light, weighs 2.3 kilograms.

Thanks to its compact structure, you will not have problems working with it in small spaces and in areas where it is difficult to access.

Its design integrates the exclusive Electronic Cell Protection system of the Bosch brand; this is responsible for protecting the battery of the device against possible overloads, prevents it from getting too hot, and also that it is completely discharged. In addition to this, the battery has no memory effect so you can charge regardless of its status, and thus none of its elements deteriorates.

 

Pros

  • All the projects you propose can be concluded efficiently and achieve professional finishes, thanks to this model of cordless grinders Bosch has a powerful engine capable of performing up to 10,000 revolutions per minute. This product guarantees you to grind the work you propose optimally.
 

Cons

  • Although its design is not a very heavy machine, some similar models are a bit lighter. In total, it weighs 2.3 kilograms, and you will only need to make a little effort while holding it.
 

Rank # 2: Ingersoll Rand 3445MAX

 If it is not the first, this grinder deserves no less than the second place among the best angle grinder for concrete of 2020, not only for its price but for its portability and efficiency in works such as the removal of rust and rust, cutting, crushing and roughing.

The Ingersoll Rand 3445MAX is one of the most practical grinders currently available. It has dimensions of 3.5 x 1.9 x 1.2 cm and weighs only 1.9 Kilograms, which allows it to be easily used even with one hand. 

Its ergonomic handle provides comfort to the user so that he can work for extended periods without getting too exhausted.

It works with 18V lithium-ion battery (very durable as reported by users), reaching 7,000 revolutions per minute, ideal for roughing works, or getting rid of rust.

The Ingersoll Rand 3445MAX  cordless grinder is easy to use through its on / off switch located at the top.

To prolong its life, it is recommended to regularly clean the machine housing with a soft cloth and, if possible, also the ventilation slots after each use.

Those who can not invest much money can consider this model, which has a positive reputation among the cheapest grinders in the market. Hence we leave you its relevant aspects.

 

Pros

Lightweight:

It is a reasonably light grinder, which is barely 1.9 kg in weight, so you will not get tired of holding it, nor will you have trouble storing it.

Silent:

It does not produce too much noise since the sound it emits only reaches 90 decibels, so you will not disturb the environment around you while using it.

Load:

It has the integrated battery charging base, so you can have it on hand, to proceed to recharge the grinder when necessary.

Design:

It has a unique design in yellow and black, which gives it a classic touch as a work tool, as well as a suitable structure to get the most out of the device.

Grip:

You will have a reasonable degree of stability with this grinder that incorporates an alternative handle so that you handle the device as accurately as possible and achieve the results you expect.

 

Cons

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Rank # 3:DEWALT Angle Grinder

Cordless grinders are versatile tools, with which we can perform different cutting tasks, as well as other natural polishing or sanding tasks. If your needs are not excessive, the Einhell TE-AG 18 Li model is a good proposal.

It is a model with a turning capacity of about 8500 revolutions per minute, with a conventional size blade of 11.5 centimeters and a power of 18 volts.

Ait is a simple system suitable for all types of tasks, with a secure disk change system, which does not require tools and is compatible with different disk models.

As for the comfort of the model, the product has a double clamping area to facilitate the operation of the product, accompanied by the usual protector that prevents the projection of remains towards the operator during the use of the grinder.

 

Pros

Feeding:

The battery-free operation makes it easy for you to work anywhere without having to rely on a nearby plug.

Coverage:

The protection against detached elements avoids risks when working on any type of material.

Fast change:

It includes a system of rapid evolution of the disks, without tools or complications.

 

Cons

Battery and charger:

This model only includes the grinder itself, so you will have to buy a battery and a charger or use your own.

Product shipped:

According to some users, it is essential to verify that the product received is new, as some user says they have received an already used product.

Battery capacity:

The brand itself recommends buying batteries of at least three amps to obtain adequate product performance.

 

Rank # 4: Hitachi G12VA 4-1/2-Inch

 The Metabo 6.02174.85 could not be missing on this list because it is considered by some users as one of the best angle grinders for concrete this year.

It is a wireless angle grinder with thin and light design to provide comfort when working in areas with limited space. With a power of 18 V and 4.0 Ah, it reaches a speed of 8,000 revolutions per minute being able to rough, sand and polish.

It is convenient because it has a quick-locking nut to change discs and also has “Overload” protection that protects the motor against overheating and offers a soft start that extends its life.

Its “Restart” protection prevents unintentional start-up after a sudden power cut, and its dust filter protects the motor against thick particles that can damage it. Also, with its “Ultra-M” Technology, it offers high performance through optimal energy utilization. As if that were not enough, it includes two batteries and the charger.

The best grinder of the moment is one that adapts to your needs. So we present this model, so you can evaluate the pros and cons and decide if it is the one you should have at home.

 

Pros

Diameter:

The wheel diameter of 125 mm is sufficient to reach the level of depth required for one case or another, providing effective performance.

Accessories:

It incorporates various attachments that help you get the most out of the equipment, such as the charger, the nut, the protective cap, etc.

Revolutions:

It produces 8 thousand revolutions per minute, which suggests a regular procedure in different grinding tasks.

Power:

18 V of power is sufficient for its performance to be adequate and to achieve the results that each person expects.

 

Cons

Speed:

The unloaded speed of this device can be considered a bit low, but remember that the battery can never transmit enough force concerning a wired connection.

 

Rank # 5: Makita XAG03Z 18V LXT

 Robert Bosch GmbH is one of the leading German household appliances companies not only in Europe but around the world. The Bosch GWS 18-125 V-LI Professional grinder is considered by many users to be the best angle grinder for concrete of 2020 for its incredible value for money.

With a speed of 10,000 revolutions per minute and an 18V battery, it has a high-performance, robust motor with a sizeable 4-pole load capacity, which guarantees excellent power and, at the same time, the durability of the grinder.

It has a compact design and a lightweight of only 2.3 kg, which guarantees easy work in small places.

It uses the innovative CoolPack batteries, exclusive to the Bosch brand, which guarantees optimum thermal dissipation and thus prolongs the life of the tools up to 100%. It also has the Bosch ECP system (Electronic Cell Protection), which protects the battery against overload, heating, and total discharge, more features to prolong the life of the grinder.

One of the advantages is that the Bosch GWS 18-125 V-LI Professional cordless grinder has no memory effect, which means that the battery can always be recharged, regardless of its state of charge and without damaging the elements.

Precautionary buyers always make reference budgets on the product they plan to purchase, if you are one of them, then read the pros and cons of this model, mentioned as the best angle grinder for concrete for 200 dollars.

 

Pros

Revolutions:

It produces 10 thousand revolutions per minute, which tells us about an engine with an adequate power level for the execution of the different tasks.

Light:

As it weighs 2.3 kg, it is light and comfortable to transport from one place to another, or if you need to store it without taking up much space, and without getting tired of handling it.

Capacity:

It has a right level of diameter capacity, with a 125 mm wheel, ideal for different types of materials and surfaces.

Ergonomics:

It allows us to handle it with comfort thanks to its grip with rubber coating, and an additional handle placed to give better precision.

Design:

In case you value the fact that the tools are not only useful but have a functional appearance, this is a suitable option for you, because it has an elegant design combining the colors blue and silver.

 

Cons

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How to use The best angle grinder for concrete

There are many tasks that we need to do at home or work, and, for this, it is necessary to have a tool that provides us with versatility, with which we can polish, sand, and even cut. For all this, cordless grinders are efficient. That is why, in this article, we will explain how to use it.

The power is according to the use you give

In this type of tool, the force with which it counts is what will help you do a quality job. However, for you to make good use of this machine, you must know how to adapt this power to the type of work you do.

If you have a grinder with a power of 1500W and you are going to use them to polish or cut wood, you don’t need to use all the power, so adjust it in control arranged for it. If you are going to work with materials of higher hardness such as metals such as iron and steel or even concrete, it is the most appropriate that you adjust the power to its maximum level to accelerate the work and obtain a better performance of the machine.   

The durability of the battery will determine the working time

Cordless grinders have cells whose strength is directly related to the power of the equipment so that you can perform complete work without the equipment running out of energy and, therefore, these must be postponed.

Some models of grinders include the purchase of an additional battery, which you should always keep charged if you are going to carry out work that takes many hours and requires the constant use of the equipment. In case the additional battery has not been included in the purchase, you may consider purchasing one.

You should also keep in mind that some batteries may require many hours to recharge fully, so be careful to charge them well in advance when using the grinder.

Use the grinder with caution

This is a tool that is used for sanding and cutting, so you can expose yourself to injury if you do not use it with the proper precautions or in the correct way. For example, sometimes the inexperience in the use of this equipment can lead to the use of a disc that is not correct with certain materials, which will cause it to break and projected to any side, and may cause injury to who operates it or someone around it, so it is also a precaution that, when using this type of tools, there is no one nearby.

When the discs are put in contact with some material, they emit dust, which can be easily inhaled by the person who operates the tool, so it is essential that you use a mouth cover mask and protective lenses, to also prevent residues from entering eye contact.

 

The most popular brands

These tools are responsible for sanding, polishing, cutting, and even polishing different surfaces or materials. They are easy to use, and now we also find the models that make these tasks much more straightforward by not relying on tangled and complicated cables. You just have to change the disk, and you will have a powerful and versatile tool. Among the best brands that make cordless grinders, we have Makita, Bosch, and Stanley.

Makita corporation has been conceived since 1915 as a company that repairs and sells electric motors. Over the years and after numerous tests and improvements in the technology they use, they have established themselves as one of the world’s leading brands in this market by being present in more than 40 countries.

By having ten operating plants in 8 countries, they are considered leaders in the manufacture of innovative products that provide useful and practical solutions; They promote high values in each of their employees and collaborators to ensure that each of their products is made with excellent quality and durability.

Its development team works directly with the engineers of each plant to develop products that exceed the requirements of each user and market where they operate. In fact, its plant located in the United States is considered the Makita University, where they educate and show customers their latest products and technologies.

This brand has different types of cordless grinders that generally work with 18V lithium-ion, with brushless motors that increase the power and speed of the tool and even usually include a new system that automatically adjusts the speed of the disk, ensuring better performance.  

This company was founded in Stuttgart, Germany, for the year 1886 by its founder, the visionary Robert Bosch, who began the work of the business with a mechanical and electrical engineering workshop. From that moment and still today, this company with a global presence is characterized by its high capacity for innovation and social commitment.

Since its inception, Mr. Bosch was always very clear about the values and principles under which he wanted to see his company grow. One of them is customer service; He was in charge of installing one of the first telephones in Stuttgart so that his clients could communicate directly with him whenever they wanted.

The company’s associates are driven by the corporate culture that, since its inception, has been promoted by the company, allowing it to differentiate itself from the rest. They have teams of workers specialized in creating creative technological solutions, which, together with colleagues and partners, form a successful business team.

Bosch cordless grinders are a favorite among users, as they represent the ideal balance between practicality, lightness, power, and fair price. They can have a speed of 10,000 revolutions per minute, have compact designs, load capacity of approximately four poles, and energy that has no waste.

It was founded in 1843 by Frederick Stanley in the city of New Britain, Connecticut, where he created the first works of Stanley. Since then, they have been responsible for creating innovative products that have helped people repair, build, and protect their homes for more than 170 years.

With time, Mr. Frederick Stanley’s legacy continues and remains more current than ever, since they seek to maintain their position as market leaders worldwide, ensuring the quality of the service they provide, designing functional tools and continuously supporting the Supervision of the production cycle.

This company is committed to the constant improvement of the sustainability of its operations, its communities, its suppliers, its products, and finally, its customers. This is why they have an Ecosmart philosophy, which allows them to have sustainability initiatives over time and frank dialogue with all interested groups.

The cordless grinders of this brand adapt very well to the values of the company since they are made to be comfortable to have a rubber grip, excellent power to work different materials, adaptability to change, and adjust different types of discs. They also have a throttle system with a lock for better control and other functions.

 

Shopping guide

Power and speed

The principle of this tool is a rotating disk at high speed that is responsible for performing the desired task. Therefore, the power, which ultimately is responsible for moving this disk, is a critical element of any comparison of cordless grinders, since at higher power, more exceptional ability to use harder grains in sanding or cutting thicker materials with a cut. It also makes a difference in how much the product costs.

As a general rule, we should bet on models from 750 watts of power up to 1500 watts, which are the traditional models that we can usually find in the market. The models of more than 1500 watts allow obtaining better results in less time, although its price already increases in remarkable form. As for the speed of rotation, do not buy grinders with less than 5000 revolutions per minute, since a lower rate prevents obtaining adequate results during use.

Battery capacity

Since we talk about cordless models, the operating power comes from the battery. This battery must have adequate ability for the driving power level of the grinder, allowing a prolonged use time. Let us think that specific tasks, such as sanding or polishing, usually take some work time, so it is not appropriate to run out of battery in the middle of it. To avoid this, many of these devices include two batteries, within their necessary equipment, it is appropriate to buy one more battery if the chosen grinder only brings one.

As for the load, you must bet on fast-loading models, which guarantee a minimum operating pressure, without waiting for the full amount. If it also includes an external charger, which allows you to use the device while charging the backup battery, much better.

Ergonomics of use

Since the grinder is a manual tool, it is essential to bet on a model that facilitates its use. That is why you should look for a model with a lightweight and reduced weight design of about two kilos as a reference so that it does not weigh more, and you can use it for a long time without getting tired. As for the design, this must include a clamping area in non-slip material that allows you to hold the grinder to regulate the cutting or application of the disc.

Some models even include among their accessories a second handle, which you can mount directly on the body of the equipment to be able to hold it comfortably with both hands. It is also important that the disc changing system be secure, preferably without tools, so that changing tasks is simple, changing the disc at the moment.

 

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