Best 7 Inch Angle Grinder For Heavy Duty

Before we going to purchase the best 7-inch angle grinder for your DIY projects and other household tasks, you first need to understand what an angle grinder and where you can use this 7-inch angle grinder.

Simply speaking, an angle grinder is a manual power tool machine that generally used in different metal and tiles fabrication task like grinding, polishing, sharpening, cutting, deburring and finishing.

Since we are talking about a 7-inch angle grinder, one thing come up in mind if you are newly handling it, why it is called 7 inch angle grinder? Well, 7 inch is nothing but the size of the grinding wheel itself. Normally, we observed that most DIY project lovers likely to use 4 inches or 4.5 inches or 5 inches grinding wheel angle grinder. We rarely see people are using 7 inch angle grinders. They are mainly used by professionals.

There are tons of 7-inch angle grinders on the market, and the decision to buy one can be both surprising and disappointing. However, the main purpose of this article. Before making a purchase, you need to understand what to pay attention to when making a purchase. In this article, we will try to examine the best 7 inch angle grinders available on the market by their features, brand value, specification, and customer reviews. Finally, our expert has brought the top 5 grinders that you can trust.

Comparison of Best 7-inch Angle Grinder Of 2021

Review of OUR TOP 5 PRODUCTS In A Brief

Number #1. Makita GA7031Y 7 inch Angle Grinder

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This Makita’s 7-inch angle grinder guarantees easy handling and excellent protection of the engine. It will be the ideal solution for you because it offers longer machine life and higher productivity for all commercial and industrial applications. These characteristics are important for professionally use angle grinder.

Key Features:

Powerful Motor

The Makita GA7031Y has a powerful motor of 15 AMP and it can rotate at the speed of up to 8,500 (RPM). This kind of powerful motor really gives grinding or polishing of metal surfaces a perfect finish and faster removal.

Engineering and Design

It is designed with a labyrinth construction that reduces the penetration of dust and other deposits into the motor and bearings. This increases the service life of the machine.

The especially zig-zag varnish design protects the armature coil of the grinder from tiny dust and debris. The wire mesh intake covers particularly designed to prevent contamination due to dust or small metal parts entering into the motor particularly when multiple grinders are using at a time.

The angle grinder is equipped with an ergonomic rubber handle designed to reduce vibration. Furthermore, the handle can be removed very easily and you can connect it to any side (left/right) you prefer. This is called flexibility and its best.

Number #2. Bosch 1974-8 7 Inch Angle Grinder

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Bosch electric angle grinders are known for their performance and reliability. They certainly change what it means to be innovative. It’s no different than this model.

It is highly efficient and has a vibration control system that is exceptional on the market. It is also a large and light tool that can hold such a powerful and powerful engine. This is a clear advantage for most operators.

Key Features:

High Quality

The angle grinder has a 15 A AC/DC power supply and a rotational speed of 8,500 rpm for a motor weighing 11.4 lbs. This shows that there is a good balance between strength, weight, and length and that you certainly get the most strength with the least weight. It’s cool, right?

Design and Construction

The Bosch power tool is equipped with a fast-acting safety system that can be quickly set and locked to ensure maximum protection of the components.

For protection against dust and metal waste, which can be abrasive, it is equipped with an epoxy field winding for this purpose. It is equipped with a three-position switch that stores all unintentional starts in the compartment, and removable brush caps for easy brush replacement.

Number #3. Hitachi G18ST 7 Inch Angle Grinder

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This 7-inch Hitachi model is an improvement from previous models because it gives you better performance, more power, greater durability, lower weight, and smaller size.

Ideal for deburring and finishing aluminium, bronze and iron surfaces. It can also be used to cut mild steel and to cut and groove concrete and other stone materials.

Key Features:

Powerful and Efficient Motor

This angle grinder is equipped with a powerful 15 A motor with a speed of 8500 rpm for all your demanding grinding work. This ensures that the work is carried out as quickly and efficiently as possible.

Design and Construction

This indicates a labyrinthine design that protects internal components such as motor bearings from dust and deposits, extending tool life.

In addition, shielded and lacquered coils, long wedges and protective tape help extend service life by preventing fine particles from entering the mill.

Additional functions

The side handle can be removed and attached to the left or right side of the tool, making it easy to work with the right or left hand. In addition, the carbon brushes are available externally for quick and easy maintenance. Finally, the tool is equipped with a spindle lock, which makes changing the wheel very easy.

Number #4: Dewalt DWE4517 7 Inch Angle Grinder

Dewalt DWE4517 7 Inch Angle Grinder
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If you’re looking for the perfect angle grinder for your workshop, home or garage, then the Dewalt DWE4517 7 Inch Angle Grinder is a perfect choice. It features a powerful 7-inch drive motor with a gear reduction system and a wide range of speeds. It also has an adjustable belt sander and a dust collection system that helps keep the unit running efficiently. This review will focus on the details of this unit, which features make it such a great all-around grinder, and how it performs in the real world. Keep reading to find out more.

Key Features:

Vibrations and Fidget

This unit has a lot of power and provides a lot of support to the tool it’s mounted on. The same can be said for the ridges and valleys that the motor runs in. The centre of the unit is very steady, but there is plenty of vibrations and fidgeting to worry about.

Battery Life

The good news is that this grinder runs on two 14.4V batteries, so it should be able to provide a decent amount of power for a long period of time. The bad news is that it only comes with one battery, so if you want to use this machine for a while, you’ll have to buy more batteries. The machine runs on two batteries because it has a planetary gear drive and two motor brushes that can draw power from two different sources.

Adjustable Belt

The belt sander that comes with most grinder packages is actually a bit outdated, and the Dewalt DWE4517 7 Inch Angle Grinder has an adjustable belt sander that makes the process a bit easier. All you have to do is adjust the pulley to match the size of your belt, and then it should work with no issues.

Adjustable Pulley

When it comes to adjusting the Pulley, you have three different options. The first is Hand Control, which is a bit cumbersome and requires a fair amount of accuracy. The other two are the Electric Pulley and the Belt Pulley. The Belt Pulley works a little bit better than the Electric Pulley, but both options are quite easy to adjust.

Dust Collection System

The dust collection system on this grinder is rather nice. There are two separate collectors, one for the motor and one for the gears. Since the dust goes into the collectors, not the air, it should be able to stay inside the unit. Unfortunately, some people have had issues with the collectors getting clogged with dust, so be sure to clean them out regularly.


  • It is lightweight – One of the most impressive aspects of this grinder is its lightweight. At just under 40 lbs. it is one of the lightest commercial angle grinders on the market.
  • It has plenty of power – Although this machine is a beast in the field it only comes with a 1.6 Amp motor which is not very powerful. That being said it does have plenty of power to do the job and has plenty of torque to do it fast.
  • It is easy to maintain – The motor is not very complicated to maintain and requires only a regular oil change and cleaning. The rest of the machine is very easy to maintain and requires a simple visual inspection.
  • It is durable – The cast iron construction of this machine is very durable and will last for years without wearing it out.
  • It has a large range of speeds – The range of speeds is quite large, from a low of 1,000 RPM to a high of 4,500 RPM, which gives you plenty of options for a wide range of applications.
  • It comes with a cover – One of the best things about this grinder is the cover.
  • It is made from a durable synthetic material and is very flexible. This allows you to protect the machine from damage and keeps it looking great.


  • Noise – There is a bit of noise from the motor and the belt sander. However, this unit is intended for use in a garage, shop or workshop, so it shouldn’t be run in a noisy location.
  • Fragile – The motor is made of plastic and is quite lightweight, so it’s quite easy to damage if you don’t take care of it.
  • Too Expensive – The price of this machine is pretty high for what you get.
  • Another downside is that this unit only comes with one sander and you’ll need to buy a second sander to expand your tool chest.

Bottom Line

The Dewalt DWE4517 7 Inch Angle Grinder is a powerful, versatile, light-weight angle grinder that is ideal for residential or commercial use. It has a 1.6 Amp motor that provides plenty of torque and power for most applications and can be used on a variety of materials, including aluminium, cast iron, concrete, stone, and wood. This machine comes with a 1-year warranty and is easy to maintain, so it is definitely worth the purchase.

Number #5. Makita GA7021 7 Inch Angle Grinder

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When you see Makita, you think of high performance and a powerful engine. A reputable brand has been in business for a long time to offer you the best quality at a reasonable price.

This model is real proof of this because it has features that guarantee comfort and ease of use and extend the life of the tool. The details are described below.

Key Features:

Powerful Motor

That 12-pound weight. The angle grinder is equipped with a 15 amp motor and a 6600 rpm motor for fast material removal. This shows that it is full of power and can easily be used for the most complex applications and demanding tasks in which the operator is involved.

Design and Construction

To increase durability, the tool has a labyrinth that protects the internal components from dust and dirt that can contaminate them. In addition, it is equipped with a wheel guard, which allows quick and easy adjustment during operation without the need for additional tools.

What is most appreciated in this model is the large release switch, which is easy to use and long-lasting. Not to mention the large axle lock, which makes it easier to change the wheel.

Finally, the shifting lever at 90◦ can move left and right. As if that wasn’t enough, the side handle is designed to be switched to one of three positions for control and convenience.

Number #6. Makita 195386-6 7 Inch Grinder Shroud

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This model is designed for use with Makita’s 7 inch mills and is perfect for finishing concrete surfaces, removing concrete and paint and removing surface coatings. It has features such as suspension, soft brushes and venting.

Key Features:

Design and Construction

This car is built with a 4 jump undercarriage. This ensures that the cover remains flush with the surface during use and compensates for wear and tear on the blades. In addition, the grinding housing is supplied with a removable edge for surface or edge treatment.

The model is also equipped with soft brushes, which make it possible to control the dust while working and move it evenly over any surface while working.


If you are concerned about its use in combination with other vacuum hose systems, we are here to put your concerns to one side. The outer diameter of the discharge nozzle is designed so that it can be used with other standard suction hose systems. This confirms once again the convenience it offers.

Number 7: Dewalt DW840 7 Inch Angle Grinder

Dewalt DW840 7 Inch Angle Grinder

Are you looking for the perfect grinder? The Dewalt DW840 7 Inch Angle Grinder is the perfect tool for the job! This 7-inch angle grinder can handle tough materials with ease, making it a great option for DIYers and contractors alike. Thanks to a powerful motor and an 18-volt battery, this grinder can tackle almost any task with ease. It’s not just good for home use, but it’s also an excellent tool for contractors, engineers, and other professionals who need a powerful grinder. Check out the details to learn more about this grinder, and see if it’s the perfect tool for your job.

What’s in the Box?

The first thing you’ll notice when you open the box is the heavy-duty carrying case. The case is made of quality, heavy-duty plastic, and it’s designed to hold the grinder securely in place. There’s even a handy carrying handle on the case for transport or storage. Dewalt’s included toolbox contains everything you need to get started: User Guide 8mm Drive gave you extra room to manoeuvre with this large motor 18-volt battery is easily replaceable Advanced digital tool control lets you precisely adjust the speed and power of the tool The Dewalt DW840 comes with 8mm drive, which gives you plenty of room to manoeuvre with this large motor. This large motor can easily deal with even the thickest of materials, making the workpiece lessens in weight by up to 18%.

Key Features

  • Advanced digital tool control lets you precisely adjust the speed and power of the tool
  • Large gearbox with 8mm drive Heavy-duty case with handle and carrying bag
  • Dewalt’s reputation for quality makes the DW840 an excellent choice
  • It’s easy to use and has an excellent combination of power and portability
  • Capable of a wide range of tasks thanks to its 7-inch grinding wheel
  • Easy to clean and maintain
  • 18-volt battery easily replaceable


  • Great for contractors and DIYers
  • Lightweight and Easy to manoeuvre
  • Flexible and Adjustable
  • Good for diverse applications including construction, residential, and professional use
  • Long-lasting 18-volt battery
  • Easy to set up and use Low noise level


  • Expensive Heavy

Bottom Line

The Dewalt DW840 7 Inch Angle Grinder is the perfect tool for the job! This 7-inch angle grinder can handle tough materials with ease, making it a great option for DIYers and contractors alike. Thanks to a powerful motor and an 18-volt battery, this grinder can tackle almost any task with ease. It’s not just good for home use, but it’s also an excellent tool for contractors, engineers, and other professionals who need a powerful grinder. Check out the details to learn more about this grinder, and see if it’s the perfect tool for your job.

Things To Be Considered When Purchasing Best 7 Inch Angle Grinder

Engine Power

In terms of power, the wizards and tool numbers can choose between 110 and 230 volts of alternating current (AC), while most power ratings are between 500 and 1500 watts.

These ratings show that they are very different, although the lower the rating of the angle grinder, the lower the rating of the angle grinder for doing your homework. The large-diameter angle grinder is most suitable for heavy professional projects.


The two aspects that go hand in hand with angle grinders and influence the ease of use of the tool are the weight and size of the grinding wheel. It is nice to know that it is more convenient to use a small device than a large one.

Unless you want to use your power tools for large construction projects on industrial sites. Smaller machines are easier to hold for longer periods of time, but the vibrating handles of the shredders make the work even more comfortable.

Safety Devices

Tool grinding and other projects requiring the use of angle grinders can involve many moving parts and hazardous situations. Safety must have the highest priority for those who want to buy one of these instruments.

Study the type of safety features your angle grinder offers. Items such as spark arrestors and safety goggles are protective features that can protect you from injury when using an angle grinder. Although some angle grinders offer safety as an optional accessory, it is much safer to buy an angle grinder with built-in safety features.


The speed measures the speed of the angle grinder. Too much speed, however, is not always good. With larger grinding wheels, excessive speed can cause the wheel to fall off, overheat or destroy the entire grinding machine with wheel chips.

That is why we offer you the maximum speed of your angle grinder, depending on your projects. You can’t destroy your car at that speed. When purchasing an angle grinder, you should look at the maximum speed and stay within that range to make sure your machine is working properly.

Frequently Asked Questions (FAQ)

What safety precautions should be taken when using an angle grinder?

A: You must always tighten and secure the workpiece and ensure that the blades are firm and the machine is silent.

Protective clothing is mandatory, as is full face protection, especially if you want to sharpen hard materials. Sheets can also break if you are not careful, so it is important that your eyes and face are well covered.

How to use an angle grinder properly?

A: Make sure that the clamps hold the material to be processed and always keep the slider away from the edges, not at the edges, to prevent the slider from moving backwards. When sharpening knives and tools with them, press evenly but carefully.

Can I use a 9-inch grinding wheel in this tool?

A: Before answering this question, it must first be understood that operating the wheel at higher speeds is a potential source of accidents or serious injury.

The reason for this is that increasing the speed of the grinding wheel can cause a load on the wheel at a lower-rated maximum speed and thus cause a splinter during the first few minutes of operation.

To answer the question: Yes, a 9-inch wheel can be used on a 7-inch wheel, as long as the maximum speeds of both wheels are the same and you use a protective cap.

The use of a 9-inch wheel with a maximum speed of 6,000 rpm on a 7-inch angle grinder with a maximum speed of 7,000 rpm can lead to cracking and possible breakage of the wheel.

However, it is important to read the instructions before using any other grinding wheel. However, for safety reasons, we recommend using a suitable grinding disc for your angle grinder.

As you’ve already seen, the best 7-inch angle grinder is the one it’s designed for, it’s versatile and does its job efficiently. After inspection and self-analysis of the 7-inch angle grinder, which offers you the best performance, robustness and reliability, the 1974-8 Bosch 7-inch angle grinder is my winner.

This is due to the fact that, compared to the other four, and in addition to its excellent performance, it has additional features such as a vibration control system and a large power balance based on weight and size. These functions are very important because they offer the professional a balance between quality and maximum efficiency.