You might need such a versatile and useful power tool for a range of tasks, including sanding, grinding, cutting and polishing; and the manufacturers of these power tools are always competing with each other to bring about tons of choices for customer satisfaction. This means such an overwhelming buying scenario is nothing new in the power tool industry. Angle grinders are never made equal and there are differences in their features and applications. So, you need to research and understand a lot about the machine to find the best angle grinder tailored for your particular metalworking demands.
In this article, I have presented my honest review so you can get your desired unit without practically going through the complex mechanics of power tools and their underlying technicality.
Why Should You Trust Us?
Here at Drillly we are a group of people that have been working with metal and wood for years. We get an exhilarating feeling when we finally hold in our hands something that was only in our mind before. We are well-familiar with the vast range of power tools used in both metal and woodworking industries because we us them every other day.
On this platform, we give numerous tricks and tricks you can ensure a fine outcome from your project every single time. We also give reviews on different power tools based on our practical user experience with them. There is also a certain testing procedure that we follow and you will get familiar with the whole process when you will check out the How We Picked These Products section below.
You should also know that our reviews are always reliable and unbiased because we have no connection or affiliation with any power tool manufacturer in the industry. We noticed that many power tool reviewers are into deceiving people because they give positive feedback on inferior products to make some money. This is the reason we established this platform where both novice and pro wood and metal enthusiasts can get benefited in a number of ways.
How Did We Pick These Products?
Finding the finest ones from a myriad of choices was not so easy for the Drillly team. First we researched online for about 22 hours to find out the most popular and the most commonly used angle grinders of that time. We were able to list down 24 such products and then we decided to test each one of them ourselves.
Our team, with a group of volunteers, began testing them to find out how effective each model was under various circumstances and for different applications. We spent a considerable amount of time doing this, and we collected and recorded the information that we got.
The data we collected allowed us to develop a guide as to the things that should be considered when choosing a grinder. These things included factors such as disc sizes, motor power, speed, the convenience of usage on different projects, and many others.
Of course, the results showed both the advantages and disadvantages of each tested brand and model. None of the models was found perfect, but clearly, there were some that seemed much better and more favorable than others.
After that, we consulted with other experts in the industry and got their views on the products we had on our list. We also went online again to check consumer reviews and ratings on our shortlisted choices. This helped us prepare this review with a buying guide that can make your buying decision very sensible.
So, after such an in-depth research and testing process, we are confident that you will find your angle grinder from this list that will give you real value for the many years to come.
Our Top 10 Best Angle Grinder
So here they are. After careful testing and examination and consultations with the authorities involved in the industry, we have grouped the tools according to their categories and features they offer. Whether you need an angle grinder for cutting metal or wood, we are confident that you will be able to find your right match from our review.
Understanding Angle Grinders
So, what are angle grinders, also known as side or disk grinders? These are handheld power tools that use high-speed spinning blades to perform different types of tasks without difficulty. They can grind and cut through concrete, iron, brick, rebar, steel, and metal. These tools can also be used to polish hard materials. These tools can be powered in 3 ways: gas, electricity, and compressed air. You can choose a hand grinder based on the task that needs to be done and its location.
Angle grinders were invented in 1954 by a German company, the Ackermann & Schmit. Although other stories say that Thomas Joseph developed it in 1973. While its origin has not been made clear yet, we cannot deny the fact that these tools can help you with your projects, especially those that require grinding, burring, cleaning, cutting, and smoothing sharp metal edges.
Why Use These Power Tools?
When it comes to grinding, polishing, cleaning, cutting, and rust removal jobs, no power tool is more ideal than the angle grinder. You’ll surely need to employ angle grinders on a regular basis if you’re an avid home-improvement and DIY project enthusiast. You can smooth down the sharp points and edges of metal surfaces that resulted from saw cuts and welding. Angle grinders can also turn out to be useful in cutting ceramics, metals, stones, concretes, tiles and more. You only have to equip it, with an appropriate attachment like a diamond wheel and it will work like a dream.
When attached to various accessories, these tools can come in handy to do polishing, sanding and cleaning jobs. With removable grinding wheels, you will be able to do a variety of jobs with angle grinders. Need to cut small tiles or clean and sharpen your lawnmower blades and other garden instruments? No worries! These tools can be used efficiently and safely and even save you a lot of effort, time and energy.
You want to bring back the shine of anything aluminum, and you can polish it with an angle grinder with a buffing pad or a polishing wheel. If the damage is too much, you can start using a high grit-grinding disc, followed by the polishing wheel.
Angle grinders can also be beneficial in brickwork. When you need to grind an old mortar out for tuck pointing, the tools can be used to do the task.
As you can see, angle grinders are great to use for almost every type of job in the house or at the workshop.
Types of Angle Grinders
There are three main types of angle grinders:
- Pneumatic or Compressed Air
Electrical grinders are the most popular types of grinders in the market, and they are run on electricity. They have cords that you plug into the socket. This type of grinder may have a limited range and cannot be taken anywhere. As in other electrical tools, you can always use an extension cord to provide additional range.
Gas powered grinders can be a good option if you need to use a cordless type of grinder. Most often, these are used for industrial purposes, so they are bigger. With this type of angle grinder, you have to make sure that you have the right gas and sufficient supply to enable you to finish the job.
Pneumatic angle grinders are operated by air under pressure; hence it is also called air compressed grinders. These are usually available in small sizes.
Things to Consider When Buying an Angle Grinder
1. Disc Size
A grinder disc is also called the wheel or the head. They come in various sizes that range from a small 4.5 inches to a large 9 inches. Usually, the larger the disc is; the more powerful the motor can be. However, remember that the disc that you should buy is the size that suits your application. For example, if precision is crucial to your task, you need a smaller disc in a pneumatic grinder.
2. Corded or Cordless
Corded grinders are run by electricity while either battery or compressed air power the cordless ones. You’ll most probably find the cordless angle grinders more preferable to buy if you are working in an area where there is no electricity. These tools are portable and easy to use, as the cord will not restrict you. The battery and charger for cordless grinders should be bought separately, though.
3. Motor Power
You can choose the voltage, wattage and amp rating of the angle grinder motor. The HP can be between 500 and 2500 watts, and amps can be from 4 to 15. For household use, you don’t have to get a mighty motor.
4. Speed & Gears
Angle grinders are available anywhere from 5,000 to 10,000 rpm. Just bear in mind that high-speed ratings are prone to cause injury, if not handled by skilled and professional workers.
5. Dust Management
The angle grinder that you should choose should have good dust management. This is the feature that prevents air pollution and also prevents dust from entering the tools and cause damage. The dust management feature thereby promotes the tools’ longevity.
You should also consider the adjustable disc guard, the handle, and the size and weight of the tool. Although this type are usually a bit larger than die grinders, the compact models can be used comfortably, even for an extended period because they are lightweight. The handles should have anti-vibration features too. Bigger units are ideal for large and industrial projects.
Most models that have interchangeable accessories can be used in a variety of applications, so you only need to buy one grinder for multiple purposes. Only the different attachments will need to be purchased.
8. Safety Features
Look for grinders with spindle lock, safety lock, safety clutches, soft start, and adjustable disc guard. The soft start feature prevents the handle from twitching or wrenching when the motor is about to start, and this enables you to handle the machine easily. This option is usually found in large grinders. If you are buying a smaller unit, make sure that this feature is included.
The adjustable disc guard protects you from the resulting sparks and debris while the grinder is in operation.
Buyers often choose the tool with the lowest price over the expensive ones, thinking that they can save money doing so. The real thing is that it is more important to invest money in a good quality grinder with the exact specifications for the job. It will be worth it, in the long run.
An angle grinder is a handy tool, but it is also hazardous, which is one reason why you should always use the guard for the grinder blade. When you are getting your workplace ready, it is essential that you make sure that you get yourself ready first.
To become assured of safety, you need to equip yourself fully with protective paraphernalia, such as tough gloves, goggles, dust masks, and boots. These things will prevent you from having serious injuries. Loose clothing is a no-no when using angle grinders because it may get caught on the clothes.
Your working environment should be free of anything combustible. Flying sparks may ignite things and cause the fire. Keep the workplace well ventilated to avoid suffering from respiratory conditions.
When using the angle grinder, your grip on the handle should be firm. Do not hold your workpieces in your hand; instead, they should be clamped and secured. Don't push too hard when the grinder is operating. This tool is very powerful and it can do the job without additional strain on itself.
If you need to examine or change the disc wheel, make sure that the machine is unplugged or the battery is removed. And our most important tip: make certain that the grinder blade is spinning away from you always.
Taking good care of your angle grinder can help extend the life of this power tool and enhance its performance. Here are some tips that will help -
- Clean the tool after each task. Clean the external casing and the air compressor using a damp cloth or a special towel. Remove dust on all components by blowing compressed air onto them.
- Occasionally, inspect the carbon brushes, the gearbox and replace whatever is worn out.
- Check the ON/OFF switch to confirm it is properly working.
- Use attachments that fit properly on the machine.
- Inspect the power supply cord and auxiliary handles for possible breakages and cracks.
Dealing with the Common Issues
* How to remove an angle grinder disc?
This is an easy task for someone with vast knowledge in the use of specific tools, but before you perform the task, make sure that the power is turned off, and the battery is removed (in cordless grinders).
* How to remove the disc with spanners?
You will need two factory spanners. One looks like a regular wrench; the other is a fork, with two separate tips called prongs. Insert the prongs in the holes in the drive bolts and use the other spanner to hold the bolt tightly, so that it will not move. Then rotate the prong until such a time that the disc is detached.
* How to remove the disc from the vice grip?
You use a screwdriver that needs to get inserted in the hole that is in the middle of the motor and the disc and then pulls it in the direction across from the disc arrow. You can also use a hammer to remove the disc.
* How to remove the disc, without tools?
Hit the disc deliberately in the other direction, using the palm of your hands, and then you can remove the disc manually.
After going through this detailed angle grinder buying guide, we hope that you are now ready to make your choice. Some buyers, however, you may be tempted to pick the cheaper options as a quick solution for the task that you have at hand.
If you want safe and hassle-free operation, trying DEWALT DWE402 out will be a wise and sensible decision because this is the best angle grinder we found so far. However, if the workload is expected to be heavy, it is also wise to invest more dollars in a high-end power tool like DEWALT DCG413B that will be durable with terrific performance.
We would like to inform you that aside from these options, few models from brands like Ryobi, Metabo, Harbor Freight, Ridgid, Drill Master, and Craftsman are also worth a try.
What we would like you to do now is evaluate the tools on our list and the amount and type of work that you need to do. From this, you can decide between what you will be spending your money for, the features that you require and what you expect the tool to do for you. Happy shopping!