What You Will Get Here
- Understanding Angle Grinders
- Why Use Angle Grinders?
- Types of Angle Grinders
- Things to Consider When Buying the Best Angle Grinder
- How Did We Pick the Best?
- Our Top 10 Angle Grinder List
- Budget Buy: BLACK & DECKER BDEG 400 6AMP Angle Grinder, 4-1/2”
- Best for Comfortable Operation: Makita 9557 PBX1 4-1/2” Angle Grinder with Aluminum Case
- Best for Cordless Operation: PORTER-CABLE PCC761B 20V Max Lithium Bare Cut Off/Grinder
- Best Compact Choice: HITACHI G12SR4 6.2 AMP 4-1/2” Angle Grinder
- Best Advanced Choice: DEWALT DCG413B 20V MAX Brushless Cut off Tool/Grinder
- A List of 4 Other Angle Grinders We Reviewed
- List of Other Products We Tested
- How to Use Angle Grinders Safely?
- Angle Grinder Maintenance Tips
Understanding Angle Grinders
So, what are angle grinders? These are hand-held 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 the right 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 fully explained and understood, we cannot deny the fact that these tools can help you do your work, especially those that require grinding, burring, cleaning, cutting and smoothing sharp metal edges.
Why Use Angle Grinders?
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 the Best Angle Grinder
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.
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.
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.
Speed and 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.
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.
In buying angle grinders, you should also consider the adjustable disc guard, the handle and the size and weight of the tool. Compact units 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 angle grinders 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.
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.
Price. This is a factor which many people put great emphasis on while choosing the best angle grinder to buy. 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.
How Did We Pick the Best?
Finding the best angle grinder from a myriad of choices is not that easy. There are steps to be taken and factors to be considered before you can conclude. In our desire to help you find your grinder without much issue, we decided to do the legwork for you.
Our team did some testing to find out how effective each brand and model of angle grinder under various circumstances and with each application could be. We spent a considerable amount of time doing this, and we collected data 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 prices, 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. No angle grinder was found perfect, but clearly, there were some that seemed much better and more favorable than others.
Moreover, we even consulted with experts and got their views on the products that we had on our list. We also went to the internet, did thorough research, and read consumer reviews on angle grinders, as well as examined the review ratings. This helped us give you the right angle grinder reviews 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 best angle grinder from this top 10 list and make an informed buying decision that will serve you for years.
Our Top 10 Angle Grinder List
So here they are. After careful testing and examination and consultations with the authorities involved in angle grinders, we have grouped the tools according to their categories and features that they offer. Whether you are looking for the best angle grinder for cutting metals or an angle grinder for cutting wood, you simply read all the angle grinder reviews in detail, and we are confident that you will be able to find the tool that fits your requirement.