When undertaking repair projects, one of the essential tools that you need is a proper angle grinder.
An angle grinder is a powerful and versatile tool with a wide range of attachments for different purposes. However, the most common use of angle grinders is for polishing and cutting metal and stone.
Nowadays, battery-powered angle grinders are becoming more common, as they are easier to handle and offer greater portability. But since there are so many products on the market, finding the one that best meets your purpose is not an easy task.
That is where this comprehensive review and guide can help you out.
Hello! I'm Stacy, and today I will help you find the best angle grinders for granite. Additionally, I've included a buyer's guide and some frequently asked questions regarding angle grinders.
So, without further ado, let me get straight to it.
Top Five Angle Grinders For Granite
1. Bosch 1375A
For professionals, having an easy-to-handle tool is one of the most critical factors in determining the efficiency of the device. That is why I recommend the Bosch 1375A, which is one of the most compact and lightweight angle grinders currently available on the market.
Product Highlights
The Bosch Angle Grinder 1375A comes with a 6.0 powerful amp motor which produces 11,000 no-load rpm for all applications. For increased ease of use, the motor also has a small field diameter, which will help you grind any slab of granite quickly and effortlessly.
Furthermore, it comes with a two-position side auxiliary handle that will ensure the highest comfort level during usage. Also, the top of the handle comes with an ergonomic design that provides proper grip to prevent wrist and arm fatigue while working.
Bosch is well known for its innovations, and the 1375A also comes with some unique features that you won't find anywhere else. The Service Minder Brush System is one such feature, which will automatically stop the tool for preventive maintenance. So, you no longer need to worry about damaging either the granite surface or the device.
What's There To Like About It?
One of the best things about the Bosch 1357A is the ⅝ inches to 11 inches spindle, which supports a wide range of accessories. Rest assured, this tool will efficiently work with the attachments you already have.
Also, the grinder has an epoxy-coated design that protects it from the debris produced while using it on various surfaces. Similarly, the switch is sealed to block the entry of dust or debris.
What's There Not To Like About It?
I couldn't find any significant downsides to this product. However, you should note that the control button is to the left instead of being at the top. The placement may cause the tool to turn off in the middle of work if you are not used to it.
Pros and Cons of Bosch 1375A
Pros
Cons
- COMPACT: weighing only 3.75 pounds, the grinder is compact and ideal for metal workers, vehicle fabricators, plumbers and other professionals who use grinders on a daily basis
- POWER: features a powerful 6.0 AMP motor to produce 11,000 no load rpm for professional cutting and grinding applications; the efficient motor was designed with an extremely small field diameter, letting the user grind or cut with ease
- COMFORT: offers a 2-position side auxiliary handle specifically designed to angle to a natural position for maximum operator comfort; the top handle of the angle grinder is also ergonomically designed
2. Black + Decker BDEG400
While looking for a highly versatile angle grinder, I came across the Black + Decker BDEG400 and was very impressed by its performance. Besides being suitable for a wide range of applications, this device is one of the most durable products on the market.
Product Highlights
This tool from Black + Decker comes with a metal gear case that protects it from damage while also allowing buyers to store it easily. Additionally, there is a three-position handle that provides a comfortable and stable grip.
If you are concerned about compatibility, it also supports various attachments, including cutters, saws, safety covers, and more. So, you can easily use this tool on a wide range of materials. Additionally, the spindle lock allows changing accessories easily and quickly.
This angle grinder can be used for various uses, such as cutting, sharpening, and removing dust. Moreover, the Black + Decker tool comes with a one-touch release switch that will help you quickly turn off the device.
The Black + Decker BDEG400 comes with a warranty of one year, which guarantees a worry-free experience while using the product. It also makes getting refunds and replacements a hassle-free process.
What's There To Like About It?
The Black + Decker BDEG400 comes with several components that will make your task easier. These include a small angle grinder, metal grinding wheel, spanner wrench, and wheel guard. With these components, you won't have to spend another dime on additional tools.
I also liked the slim build of this grinder, as it provides a better grip while working. This excellent build combined with the 10,000 RPM will cut through any material and does exceptionally well with granite.
What's There Not To Like About It?
The instruction manual included with this tool does not provide clear directions on properly attaching the cutters. That said, the setup process was challenging, and I was afraid that I might damage the tool or meet with an accident.
It is best to go through the instructions that other purchasers and reviewers provide to prevent any mishaps.
Pros and Cons of Black + Decker BDEG400
Pros
Cons
- Metal gear case for durability and longer life
- 3 Position side handle provides added comfort and control
- Spindle lock for easy accessory changes
3. Dewalt DCG416B
Moving on to the next product, the Dewalt DCG416B is another excellent contender for the best angle grinder for granite. It is a brushless and cordless paddle-switch angle grinder with a side handle, type-27 guard, wrench, and flanges.
Product Highlights
First and foremost, the DCG416B can be paired with Flexvolt batteries to increase the power by up to 54%. Needless to say, this tool has the potential to be one of the most powerful in this category and makes working with materials like granite a lot easier and faster.
Additionally, it has a kickback switch that stops the wheel quickly and turns off the grinder in case of a bind-up. This feature prevents both the device and the material from getting damaged while working. Also, the e-clutch shuts off the motor in case of such an event to avoid accidents.
What’s more, this Dewalt product supports the manufacturer's Tool Connect Chip technology, enabling you to sync it with the smartphone app easily. On that note, this application will help you quickly manage your tools on the job site without any hassles.
What's There To Like About It?
I liked several things about this product, such as the incredibly powerful motor, which makes cutting through materials like granite a breeze. The speed at which the motor allows this device to work will impress even the more hardcore fans of corded grinders.
Another thing that I found to be impressive is the safety shut-off feature, which prevents the blades from breaking or getting damaged. At the same time, it prevents accidents and injuries from the blade getting shattered.
What's There Not To Like About It?
The Dewalt Flexwalt DCG416B is one of the best angle grinders I have ever come across, with almost no downsides. However, since it has such a powerful motor that works incredibly fast, you will run out of batteries pretty quickly with regular use. That is why the manufacturer recommends using Flexvolt batteries that are known to last longer.
Pros and Cons of Dewalt DCG416B
Pros
Cons
- Angle grinder gets up to 54% more power when paired with FLEXVOLT batteries
- Kickback Brake of DEWALT angle grinder engages with maximum force to quickly stop the wheel and shut off the grinder when a bind-up occurs.
- E-CLUTCH shuts down the motor of DEWALT angle grinder in under a tenth of a second when a pinch/stall is detected
4. Avid Power MW590
The Avid Power MW590 is one of the best options on the market if you are looking for a lightweight and ergonomic angle grinder. It has an ergonomic design that ensures a hassle-free experience and smooth results.
Product Highlights
The MW590 Angle Grinder comes with a 7.5 Amps motor with 900 W max output, which is perfect for quickly cutting through granite surfaces. Add to this the 11,000 RPM, and even the most demanding applications can be dealt with effectively.
For greater convenience, this tool comes with an integrated spindle lock on the disc grinder. This feature makes it easy to replace the cutting wheels and requires a much more straightforward process than other angle grinding tools.
I also liked the protective cover of the device, which goes over the grinder and prevents metal chips and sparks during use. From the point of safety, it is an excellent device that will prevent injuries while you are working on a project. Additionally, the auxiliary handle provides greater comfort, control, and versatility during various operations.
And don’t worry about the device heating up; it has one of the best heat dissipation technologies in the industry.
What's There To Like About It?
The MW590 is one of the most efficient portable angle grinders I've ever used. It works well on several types of materials and is ideal for working with granite. The grinder cuts through the material like butter without getting stuck or jammed.
Thanks to the lightweight and compact build, I also did not feel any fatigue while trying out this product for extended periods. Similarly, the ergonomic grip also adds to the comfort while using it.
What's There Not To Like About It?
The only qualm that I had with this product is that the on/off switch is a bit hard and requires some effort to use. However, applying too much effort might cause some damage to the device itself. To prevent that, you have to be careful while turning it on or off.
Pros and Cons of Avid Power MW590
Pros
Cons
- NOTE: DON’T use this grinder continuously for more than 30 mins, recommend 30 mins running time with resting for 15 mins
- Powerful and Well-balanced Grinder Tool: Equipped with 7.5 Amps motor with 900W max output power, this metal grinder can produce no-load speed of 12000 RPM for most light-duty HOME projects, no excessive vibration
- Included Essential Wheels for Cutting/Grinding/Polishing Metal: This electric grinder comes with 2 cutting wheels, 2 grinding wheels and a flap disc. By purchasing separately diamond discs, it can be used for tiles/stones/concrete/marble/granite
5. Makita 9564CV
Before I end the list, I would like to mention the Makita 9564CV, a high-powered angle grinder perfect for materials like granite. It has a powerful 13-amp motor that offers a variable RMP ranging from 2,800 to 10,500 RPMs.
Product Highlights
Makita is one of the big names in the power tools industry, offering excellent products for both home and commercial use. The 9564CV is no exception and combines ease of use with versatility and durability.
The device uses Sass technology, a mechanical clutch system that allows the driveshaft to slip if the wheel is forced to stop. That said, it will prevent damage to the gear and motor, enabling you to use this device for a long time.
Another excellent feature is the speed control, which allows you to adjust the speed according to the application. Needless to say, it is easy to control the speed of the grinder easily while working on metal or granite.
Finally, to promote extended usage and better life, the grinder has a soft start system that reduces the startup reaction and impact.
What's There To Like About It?
If you require a powerful angle grinder that offers several hours of use a day, then the Makita 9564CV may be perfect for you. It provides a smooth operation, and the ergonomic handle also helps prevent any wrist or arm fatigue.
The angle grinder also offers variable speed control, which will help you control the speed depending upon the type of material and use. Even costlier products from bigger brands often lack this excellent feature.
What's There Not To Like About It?
The only drawback to this otherwise excellent product is that the guard adjustment is not as durable as expected. In cases of extreme use for an extended period, the adjustment can get damaged and will need replacing.
Pros and Cons of Makita 9564CV
Pros
Cons
- Powerful 13 amp motor delivers more output and variable (2, 800 - 10, 500) RPM
- Sass technology is a mechanical clutch system that helps prevent motor and gear damage by allowing the drive shaft to slip if the wheel is forced to stop
- Variable speed control dial enables user to match the speed to the application
Buyers Guide
These are some of the best angle grinders that I could find on the market. While researching these products, I learned quite a few things that helped me through the process.
I want to share these points with you, which will help you narrow down your choices when buying the best angle grinder for granite.
1. Power
The first thing to consider when purchasing an angle grinder for granite is its power capacity. A grinder with a higher wattage will operate at a higher power while cutting or grinding any material. That is why we recommend going for products with higher wattage.
Additionally, the wattage, amp rating, and voltage of different angle grinders vary greatly, based upon the application they are meant for. Nevertheless, the ideal amp rating should be between 4 and 15, whereas the current should be 110 to 230 volts on AC. On the other hand, the wattage should range from 500 to 2500 watts.
For most home use purposes, an angle grinder with a lower amp rating should do fine, but it also depends upon the type of material you are working on. Alternatively, in the case of commercial or industrial uses, like in metal industries, a higher rating is required.
2. Disc Size
The size of the cutting disc, also known as the head, is also an essential factor to consider. Here, the larger the cutting disc, the more power you will require to operate it. However, a bigger disc is not always needed for all purposes.
For instance, when you need to smoothen the edges of the material, it is best to use grinders with smaller discs that offer greater precision. Disc sizes range from four inches to eight inches, and different types of projects require different sizes. It is also worth noting that pneumatic grinders generally come with smaller discs.
3. Power Supply
Angle grinders generally have three different modes of power — electrical, petrol, or compressed air. And offers distinct advantages and disadvantages. However, it is worth noting that electrical grinders work on the battery through direct current and stop working if the power goes out or is drained.
On the other hand, the petrol grinder needs to be filled with gas, while the battery power grinders offer the highest portability. With these factors in mind, you can select the type of grinder that best suits your purpose.
4. Speed
Different types of grinders offer different cutting speeds based on the number of revolutions-per-minute (RPM) of the cutting discs. The higher the RPM, the more effective a grinder is. Most commonly, the RPM ratings range from 5,000 to 10,000 RPM.
Before purchasing a grinder, check the RPM as different materials require higher or lower cutting speeds for best results. That said, you will probably need angle grinders with higher RPM for cutting and grinding strong metals.
For sanding, grinding, and cutting, grinders with varying speeds are also available, allowing you to change the speed according to the requirement of the project.
5. Comfort
Many manufacturers are offering angle grinders with adjustable side handles nowadays, which provide greater flexibility. As a result, such handles ensure greater comfort and convenience while working on various projects. At the same time, they may prevent wrist and arm fatigue when you are working for long periods.
Regarding comfort, you should also check the size and weight of the grinder. A lightweight angle grinder is easier to carry around and handle. Additionally, look for an anti-vibration feature that ensures smooth operation for long hours without causing any strain while offering better control.
6. Versatility
Different types of attachments can be used with grinders for working on various projects. That said, angle grinders are versatile tools because they support a huge assortment of attachments and accessories.
The majority of angle grinders available on the market today allow you to change the cutting discs and different accessories as and when needed. These include brush and wheel attachments, anti-vibration handles, adjustable side handles, adjustable guards, and so on.
7. Adjustable Guard
Working with angle grinders can be a dangerous job, as debris and sparks during the cutting process can often cause injury. That is why some angle grinders come with adjustable guards that keep your hand protected while working.
That said, it is always better to find an angle grinder that comes with an adjustable guard. However, if you cannot find such a device, get one that supports attachments so that you can add an adjustable guard later.
Frequently Asked Questions
Before inserting a new disc in your angle grinder, the first thing to do is remove it from the power source. If it runs on batteries, then remove the batteries.
After this, press the spindle lock button and insert the new disc until it fits securely into place. Finally, you can attach the clamping flange and tighten it using a wrench.
A powerful angle grinder can easily cut through most materials, but multi-layered materials and certain rocks, such as diamonds, offer extreme resistance. It is best to use an angle grinder only on materials that are recommended by the manufacturer.
Different types of projects require different disc sizes and cutting speeds. So, it is best to change the disc in your angle grinder to suit the type of material you are working on. Also, if the disc has become worn out or blunt, it is perhaps time to change it.
My Final Recommendation
I hope you enjoyed learning about the best angle grinder for granite in this review. Nevertheless, I had a great time researching the projects and compiling this guide.
And with that, it’s time to wrap up. But before I go, I would like to share some of my favorites from the list. The Bosch 1375A is the ideal option if you are looking for a lightweight and versatile option.
On the other hand, if you are looking for an affordable product that comes with an excellent warranty, then the Black + Decker BDEG400 is a perfect choice. Or perhaps, you can go for the Dewalt DCG416B, which is equipped with superb safety features and a smartphone application for easier management.
Feel free to leave a comment below. Until next time!