Whether you want to cut metals or grind concrete, grinders are a handy power tool. You may opt between straight die grinders, angle grinders, and cut-off saws, which may be pneumatic, electric, or fuel-powered. In this detailed review and buying guide, we will help you explore all you need to know before buying and using an angle grinder. We've put together a list of the best angle grinders in 2021 - safe and reliable for not only first-time users but for professionals as well! So, without any further ado, let's get started with the basics!
This section will help you go about your purchase without hassle. Here are some vital points you should consider before buying an angle grinder:
Types of Angle Grinders
Knowing the different types of angle grinders out there will help you make only the right choices.
1. Corded Angle Grinders
Corded angle grinders are the type you need to plug continuously into a power source before working. The benefit of using this type of grinder is that you get consistent and indefinite running time. Also, they usually weigh less than the cordless models and are also cheaper.
The biggest challenge with using this type of grinder is that you need to be within a good range of a power outlet.
2. Cordless Angle Grinders
Battery-powered or cordless angle grinders work with their power. This type of grinder is perfect for jobs that require having a grinder on scaffolding or a ladder. These days, you will find modern brushless electric motors which last a long time between recharges. When charging this device, expect to use a minimum of half an hour to get the needed charge level on a drained 6Ah battery.
3. Pneumatic Angle Grinders
This type of angle grinder is an upgrade to the electric angle grinder. To use them, you need to get them plugged into a suitable air compressor unit to work effectively. Since they don't come with electric motors and batteries, they work using air pressure. They also rank as one of the cheapest options out there.
Tips For Choosing the Best Angle Grinder
Before you buy angle grinders, there are a few things you need to consider. Here is a breakdown of some of the critical factors to consider:
Whenever you compare the speed between the different angle grinder models, you need to keep it at the back of your mind that those who can take smaller discs can produce quicker RPMs than the larger ones. The RPM talks about the quickest rotation that can be done without installing a disc.
Large angle grinders usually come with a slower pace of about 6,000 RPM, while the medium angle grinders come with a faster than 8,000.
There are different size options of angle grinders, ranging between 9 inches and 4 inches. Also, you may find something that measures smaller or a bit larger. Note that 4-inch grinders are the most affordable and work for many purposes. On the other hand, the five-inch grinders are reputed to be suitable for cutting through tubing more quickly than the 4-inch option. The 9-inch is reputed to be perfect for heavier materials such as concrete and steel.
In the power department, you need a built system with enough power to help you get the work done. The majority of systems are built with 2,500 watts and 500 watts, even though you may find those with power ratings that are lower or higher. What this implies is that you may get between 4 to 15 amps.
Chances are, you will get more than one wheel with the grinder. You may never know where and what you will need your grinder to do at some point. For instance, you may use a grinder to brush off some primer from the walls at some point or even sand your wood before staining it. At other times, you'll only be using it to cut through wood/metal.
It would help if you also had an ergonomic, non-slip handle that you can quickly move around. An angle grinder can is a dangerous tool and may cause serious harm if used with recklessness. So, make sure you're investing in the right tool!
What Are The Different Uses Of An Angle Grinder?
Angle grinders were initially made for abrasive discs, although their popularity and versatility have made more manufacturers use them for other purposes.
Grinding is the foremost reason why people buy and use grinders. If you get the correct type of grinding wheel, you can use your grinder to grind down sharp corners, metal weld lumps, and the likes.
Surface preparation and sanding is one of the most common uses of an angle grinder. If you combine it with the right sanding pad, angle grinders can prove to be very effective for removing old paints and handling other defects.
Another area where the grinder is functional is in cutting if the correct cutting disc is installed. Different cutting attachments will allow you to cut through tile, masonry, metal and concrete, and softer stuff such as wood, plastic, and PVC.
Safety Tips While Using Angle Grinders
The motor of an angle grinder can run at high speeds of up to 11,000 rpm, which ranks higher than drill motors. Take note of the following safety precautions while using the grinder:
It's important that you read the manual well if you are using the machine for the first time.
Make sure you use the proper safety gloves, eye protection, and shoes to avoid accidents.
Always keep away from bystanders.
If you want to change the wheel, make sure you unplug the grinder first.
The items listed in this guide easily rank among the best out there in the market. It would help if you didn't struggle to choose to perfectly suit your needs from the list. So, without any further ado, let's hook you up with the best angle grinders out there!
There are few grinders out there that perform as well as the Black and Decker BDEG400 Angle Grinder. This tool is ideal for cutting, sharpening, removing dust and surface preparation. It has a metal gear case which makes it last longer. The device has a 3-position side handle which gives you added control and comfort for use with different angles and materials. Also, it comes with a spindle lock which makes it easy to change its accessories. The device operates at 10,000 rpm along with a spindle size range of 5/8″-11″.
You will enjoy power and versatility, which you need for multiple applications such as cutting, grinding and the likes.
Narrow-body giving it a comfortable grip
Has spindle lock giving it easy accessory changes
Three-position side handles which give it control and comfort
Enjoy premium motor protection and comfort with the powerful Makita Angle Grinder. This unique grinder produces 11,000 RPM along with a soft start for smooth start-ups. Other features include labyrinth construction, which helps protect and seal bearings and motors from debris and dust, thus giving it a longer life and a protective zig-zag varnish that helps protect the armature from debris and dust.
This unique tool has some ease-of-use features such as an extra-large paddle switch which makes it easy to use, and a lock-off/on feature for easy operation. The device weighs just 4.5 lbs, and a side handle installed with ease on both sides of the tool. Additionally, it comes with a tool-less wheel guard adjustment which makes for easy clamping. You can also use this grinder with DC/AC power sources. The grinder is powerful and versatile for grinding, cutting and polishing applications.
Versatile power use
Extra-large paddle switch makes it easy to operate
DEWALT’s Angle Grinder tool is designed for those who work on the go. This tool is composed of three robust systems, which makes it easy to maximize performance. The tools include dust ejection, which makes it easy to prevent the entrance of dust into the grinder tool. Also, it has a one-touch guard for 360-degree rotation and quick-change wheel release making the wheel removal easy. The tool has an RPM of 11,000 from an 11Amp AC/DC power source. With its oversized brushes, this machine gives twice the brush life over the previous model.
The AVID Power Angle grinder is widely used for metal cutting, tile cutting, metal grinding, woodcutting and wood grinding. This tool is equipped using a 7.5 Amps motor along with a 900W maximum power output. Its unique power output means it can produce a no-load speed of 11000RPM for the most gruelling applications. The design of this tool is lightweight, slim and compact, which makes it more comfortable to use in grinding and cutting applications.
Also, you get to enjoy convenient operation using the integrated spindle lock found on the disc grinder. While being used, the protective cover of this grinder will help avert metal chips and sparks to help prevent injuries.
Sports an ergonomic design
Stands out because of its safety and ease of usage
It’s a sturdy one – won’t break even if you drop it on a hard floor
Enjoy premium quality grinding function with the PORTER-CABLE Angle Grinder tool. This tool operates at 12,000 RPM giving it fast cutting and grinding using the durable motor, which keeps it strong. Also, the cast metal gear case provides durability and prolonged tool life. The grinder tool has a 3-position side handle, and the tool-free guard change gives room for easy and fast guard removal, while the integrated spindle lock gives room for single wrench wheel changes.
Smooth start-up, not a jerky one
No-volt switch which helps prevent unwanted accidental restarts
The Metabo HPT Angle Grinder is an upgrade from the previous model, and it comes with a smaller grip diameter, making it easy to control. Also, you encounter less fatigue even in prolonged use while enjoying improved performance while using a power output of 6.2 amps and higher overload durability. Also, the tool has a spindle lock which makes it easy to change the wheels. Enjoy easy set-up, use and maintenance while using this tool!
It comes with a spindle lock for easy and quick accessory and disc changes
Improved control – thanks to the comfortable handle and light weight
It’s not exactly a con but the motor could be larger for more power
Best Angle Grinder FAQ
Q: How can I remove the angle of the grinder disc?
A: Removing the disc depends mainly on your preference and the tools at your disposal. However, ensure you turn off the grinder power before you remove the disc.
Q: How can I remove the disc from vice grips?
A: Begin by attaching the grips to the bolt, which helps hold the disc from spinning to drive. You should insert a cordless screwdriver into the hole between the disc and motor when this is done. After that, pull the screwdriver in the opposite direction of the disc arrow.
Q: How can I get a quality disc to buy?
A: With several manufacturers out there, finding the perfect choice can be difficult. However, always focus on quality over cost and check for reviews on reputable online and offline platforms.
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