7 Best 9-Inch Angle Grinder to Buy In 2024

Going to buy an angle grinder, you may think that the choice of the device is a simple task. The principle of all machines is the same, buy the right one for the price, and that’s it. But in practice, it may turn out that the grinder could be more comfortable, and using it effectively is impossible. If you are looking for a quality and safe tool that will not go in the trash after several uses, we invite you to read our best 9-inch angle grinder reviews. Here you’ll get people’s opinions on the most popular 9-inch grinders.

Product
Top Pick
Milwaukee 2785-20 M18 FUEL 7 in. / 9 in....
Runner Up
Toolman Single Speed Angle Grinder 9"...
Premium Pick
Metabo 606474420 Large Angle Grinder
Title
Milwaukee 2785-20 M18 FUEL 7 in. / 9 in....
Toolman Single Speed Angle Grinder 9"...
Metabo 606474420 Large Angle Grinder
Prime
-
-
Pros
Compatible with 7" and 9" drives
Protection against accidental start
Dust-proof adjustable cover
Top Pick
Product
Milwaukee 2785-20 M18 FUEL 7 in. / 9 in....
Title
Milwaukee 2785-20 M18 FUEL 7 in. / 9 in....
Prime
-
Pros
Compatible with 7" and 9" drives
My review
Runner Up
Product
Toolman Single Speed Angle Grinder 9"...
Title
Toolman Single Speed Angle Grinder 9"...
Prime
-
Pros
Protection against accidental start
My review
Premium Pick
Product
Metabo 606474420 Large Angle Grinder
Title
Metabo 606474420 Large Angle Grinder
Prime
Pros
Dust-proof adjustable cover
My review

Top 7 Best 9-Inch Angle Grinders Reviewed

  1. Milwaukee 2785-20 M18 ― Best 9-inch Angle Grinder
  2. Toolman Single Speed ― Best Angle Grinder Heavy Duty
  3. Metabo–9″ ― Best 9-inch Angle Grinder Great Value
  4. Makita 9″ ― Best Overall 9-inch Angle Grinder
  5. DEWALT 9-Inch ― Best Versalite 9-inch Angle Grinder
  6. Makita GA9060 ― Best 9-inch Angle Grinder for Professional Use
  7. PROMAKER Angle Grinder 9 inch ― Best Affordable 9-inch Angle Grinder

Milwaukee 2785-20 M18 ― Best 9-Inch Angle Grinder

My acquaintance Ben uses this angle grinder for construction work. He often has to cut pieces of thick metal. Thanks to its 9-inch diameter cutter, this machine does a great job. Ben likes how powerful this machine is. Also, a significant advantage is that it has a rechargeable battery. That eliminates unnecessary wires and only requires being around the power source occasionally. In addition, he can use a 7-inch disc when necessary.

9-Inch Angle Grinder Milwaukee 2785-20 M18 in use

This grinder from Milwaukee is equipped with Redlink Plus, which protects the unit from overheating and overloading. The brushless PowerState engine creates fewer hot sparks. No special tools are required to change the disc. When the need arises in the working process, it can be replaced without much effort and time.

Positives:
  • High performance;
  • Fast drive change;
  • Compatible with 7″ and 9″ drives;
  • Intelligent System Redlink Plus;
  • PowerState motor.
Could be better:
  • Material plastic.

Toolman Single Speed ― Best Angle Grinder Heavy Duty

My neighbor Carl does custom home repairs. He has a Toolman angle grinder in his tool kit. He said he got a good tool for the money. Carl doesn’t have to use the device daily but has had time to appreciate its advantages and generally has no complaints. The unit doesn’t make a lot of vibration or noise when working with metal and stone. He also likes that the tool is comfortable to hold thanks to the comfortable handle. Carl doesn’t have to worry about his safety since the blade guard rotates 360 degrees around the blade and can be set in any position he likes. A special button protects against accidental start.

The grinder from Toolman has 15 amps of power and speeds up to 11,500 RPM. The manufacturer claims the device will last at least two years, even with constant heavy use.

Positives:
  • High performance;
  • Adjustable safety guard;
  • Protection against accidental start;
  • Price.
Could be better:
  • Can overheat with prolonged use.

Metabo – 9″ ― Best 9-Inch Angle Grinder Great Value

My friend Michael owns a machine shop. He told me that his subordinates use different grinders for their work. But one of their favorites is this tool. The 15-amp power combined with the 9-inch disc allows them to do a demanding job. At the same time, cutting a thick sheet of metal or stone, the sander doesn’t vibrate and doesn’t make a lot of noise. The only drawback was that they had to buy the diamond disc extra because it was not included in the kit.

The Metabo 9-inch angle grinder is a German-made tool. That is not a budget model, but its quality justifies every penny spent. Metabo VibraTech system does not allow the sander to vibrate when working with metal, stone, etc. The device from Metabo also has an adjustable protective hood. The handle can be set in three positions for more convenience.

Positives:
  • German-made;
  • Dust-proof adjustable cover;
  • Does not vibrate during use.
Could be better:
  • No diamond wheel included.

Makita 9″ ― Best Overall 9-Inch Angle Grinder

My cousin Fred was helping to build his friend’s house. During construction, they used this angle grinder for various jobs, particularly for cutting bricks daily. Fred states that it is a convenient and productive tool. This sander is rather large and weighs 18 feet, so it only needs to be held with two hands. My cousin likes that he can change the handle position, making it very easy to work when cutting at a different angle. Besides, he didn’t complain about vibration, noise, or other imperfections. Fred said that the Makita 9-inch angle grinder is of great value for money and that the tool handles most construction jobs.

This angle grinder has rugged housing and protection against dust and debris entering the engine. It can be used for the dustiest jobs without worrying about early failure. The tool is equipped with an AC/DC switch depending on the workplace conditions. The sander is quite powerful thanks to its 15-amp motor and 9-inch diamond disc with speeds up to 6,600 RPM.

Positives:
  • Adjustable handle;
  • Protection against debris entering the engine;
  • Rugged case.
Could be better:
  • Heavy.

DEWALT 9-Inch ― Best Versalite 9-Inch Angle Grinder

My uncle William bought this grinder for repairs in his garage. He needed to remove old paint from the walls, and he said this tool was helpful. But my uncle didn’t expect that there was no nut in the kit for fixing the disk. So the repair had to be postponed while he got the necessary parts. This grinder can operate with 7-inch and 9-inch discs. It was important because he wasn’t sure if a giant wheel would be enough. My uncle said that he got the paint off the walls pretty quickly with this machine. He liked that he didn’t have to clean the grinder for a long time after a dusty job because it was protected from dirt inside.

DEWALT 9-Inch Angle Grinder in use

This 9″ angle grinder has a powerful 5.3 hp engine and speeds up to 6,000 RPM. The handle can be set in two positions, depending on what you want to do–for example, grinding or cutting. The unit runs on AC and DC power. You can also operate the sander without worrying that it will suddenly break down. The device automatically shuts off when it’s time to change the brushes. It is also protected against overheating.

Positives:
  • Rugged case;
  • Overvoltage protection;
  • Ergonomic handle;
  • Powerful 5,3 hp.
Could be better:
  • Not all parts are in the kit

Makita GA9060 ― Best 9-Inch Angle Grinder for Professional Use

When my friend Andrew and his wife bought a new house, he came to me for advice on the best tools for renovation. I recommended this grinder based on its reliability, functionality, and ease of use. Andrew was pleased with the tool. He said he felt comfortable with its low weight. He also wanted it to last him as long as possible, so he could use it after repairs if needed. This grinder has a labyrinth design that keeps dust, metal, and concrete particles out of the engine.

This professional tool allows you to reposition the handle in three positions for comfortable and efficient operation. The 15-amp motor and 6,000 RPM speed provide excellent performance on the most demanding jobs. The Makita 9-inch angle grinder is suitable for cutting metal, removing rust and paint, etc.

Positives:
  • Motor protection against dust and debris;
  • Ergonomic handle;
  • Powerful motor.
Could be better:
  • Price.

PROMAKER Angle Grinder 9 Inch ― Best Affordable 9-Inch Angle Grinder

My coworker Peter was remodeling his kitchen by himself with this angle grinder. He could be more experienced in using such tools. He chose a model from Promaker because he found it very safe. For example, Peter doesn’t need to adjust the tool, so the hood protects him from sparks and small particles in his face. Instead, he can put the guard in the right direction. Peter also likes the soft-start feature. He can gradually increase the speed to the required rate. It’s a powerful and productive tool, but the flip side of the coin is its heavy weight. To handle a large wall area, he had to take frequent breaks due to fatigue in his hands. But Peter is sure this is an individual thing.

It is not an expensive device, but it is pretty powerful. The motor is 17.52 amps at 8,400 RPM. The handle can be set in three positions for more comfortable use of the sander.

Positives:
  • Gradual start-up technology;
  • Ergonomic handle;
  • Powerful 17.52 amps.
Could be better:
  • Heavy for extended use.

Buyer’s Guide 9-Inch Angle Grinder

When choosing an angle grinder, you should pay attention not just to the price or the manufacturer. Inappropriate tooling or improper handling is one of the most common injury causes. Before you buy a grinder, you should find out its main characteristics and what functions it should have.

Power

Since angle grinders are designed for various work types, they have different parameters. There are four kinds of tools by power: 500-watt, 1,000-watt, 1,500-watt, and 2,500-watt. The devices with low power are suitable for polishing and grinding. To work with a thin metal, choose a grinder at 1,500 watts. To work with thick metal and other durable materials, select the most powerful sander at 2,500 watts. It is also worth remembering that the larger the wheel size that supports the tool, the more powerful it is. Thus, 9-inch grinders tend to have the most power.

Size and weight

These parameters are essential because they directly affect the work process. 9-inch angle grinders have the most power, which inevitably impacts weight. Most units weigh between 10 and 13 pounds. Some models can even weigh 18 pounds. When buying a machine, you should understand how often you plan to use the grinder and for what kind of jobs. You will get tired quickly if you run too heavy tools for too long.

Control

Like many hand tools, the grinder can be powered or battery-powered. Both options have their advantages and disadvantages. For example, a cordless 9-inch angle grinder allows the person to be more mobile but limits their work time. Therefore, it is worth understanding what conditions you will work in and how much.

Disc speed

The angle grinder blade can rotate at speeds between 3,000 and 13,000 RPM. It is important to choose not the maximum speed but the one suitable for a particular operation. After all, if the disc spins too fast, you can ruin the object you’re sanding. Besides, it may not be safe for your health. 9-inch sanders tend to be the most powerful, but their rotational speed reaches 6,500 RPM. By comparison, 4-inch models have speeds of 10,000 RPM or higher.

Safety

Man uses a 9-Inch Angle Grinder

For the safest possible working process, make sure that the grinder has the following features:

  • Smooth motor start. This feature allows you to turn the tool on at the minimum speed and gradually increase it.
  • Speed control. The speed of the disc decreases during contact with the work surface. These variations overload the sander. The speed control system allows the tool to always run at the same speed.
  • Motor protection from debris. To prevent the sander from suddenly shutting down because the motor is clogged with dust and debris, you need a system to protect the engine from contaminants.
  • The presence of an adjustable protective cover will protect against sparks.
  • A locking start button will prevent the tool from turning on by itself accidentally.

In addition, it is important to have a safety mask, gloves, sturdy shoes, and covered clothing when working with a tool.

FAQ About 9-Inch Angle Grinder

I would also like to complete my 9-inch angle grinder review with answers to some popular questions.

How deep can a 9-inch angle grinder cut?

This type of grinder has a large cutting area. A 9″ device can cut 3″ deeper. But it depends on the angle at which you operate with the material.

Where to store 9″ angle grinder discs?

To prevent the discs from losing their properties, they should be stored in a dry, dark room. The humidity should not exceed 65%, and the temperature should be between 64 and 71°F. Also, ensure that the discs are not near windows or doors to prevent a draft from damaging them.

How to use a 9-inch angle grinder?

Make sure you have installed the proper disk before turning on the grinder. Prepare the object to be machined and make sure it is immovable. Turn on the tool, and set the desired speed. Unplug the machine from the mains when you are finished.

Find the Right Angle Grinder

So choose one of these seven models of angle grinders. You already know the advantages and disadvantages of each device. Now all you have to do is outline the work you will be doing with the grinder. In any case, you can opt for a tool brand Makita or Milwaukee, as reliability and performance characterize it. If I were picking out a 9-inch angle grinder, I’d look at these two options.

Best 9-inch angle grinder ― comparison table

Best Angel GrindersMaximum Rotational SpeedPower SourceWarranty Description
Milwaukee 2785-20 M186,600 RPM
Corded Electric
5-year
Toolman Single Speed6,000 RPMCorded Electric1-year
Metabo–9"6,600 RPMManual3-year
Makita 9"6,600 RPMCorded Electric2-year
DEWALT 9-Inch6,500 RPMCorded Electric3-year
Makita GA90606,600 RPMAlternating Current1-year
PROMAKER Angle Grinder 9 inch8,400 RPMCorded Electric2-year

Which tool would you prefer? Share your thoughts in the comments.

Sean Chapman
Sean Chapman

“A good tool stays with you for many years and choosing carefully ensures the job is done right, your work is neat, and the tool is always a pleasure to use”

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