10 Best Angle Grinders | April 2017

10 Best Angle Grinders
Best Mid-Range
★★★★★
Best High-End
★★★
Best Inexpensive
★★★
We spent 38 hours on research, videography, and editing, to review the top choices for this wiki. If you work with metal in any capacity, then a high-quality angle grinder will make your life a lot easier. These cut-off tools use an abrasive wheel to shear through metal, making them perfect for cutting, brushing, or de-burring. The options on this list will make quick work of any job, while also being comfortable and durable enough to last you all day on even the most demanding work sites. Skip to the best angle grinder on Amazon.
10
The professional-grade Hitachi G12SR4 boasts a powerful 6.4 amp motor with high overload durability. It works well on a variety of applications, and comes with 5 grinding wheels, so you'll always have the right tool for whatever material you're working on.
  • smooth operating slide switch
  • ergonomically angled side handle
  • speed control is glitchy
Brand Hitachi
Model G12SR4
Weight 9.1 pounds
Rating 3.8 / 5.0
9
The DeWalt DW840 is a heavy-duty tool that is nonetheless ideal for tight spaces. It has a rear-handle design that makes one-handed operation easy and efficient, and has sealed ball and roller bearings to keep dust and metal shavings from wreaking havoc on the motor.
  • external brush doors for easy access
  • high power-to-weight ratio
  • tends to overheat easily
Brand DEWALT
Model DW840
Weight 12 pounds
Rating 4.0 / 5.0
8
The Bosch 1375A sports a two-position handle and has a lock on the side switch that enables continuous operation, making it ideal if you need it to work all day. The guard is awkward and difficult to use, however, as it compromises your range of motion while working.
  • requires very little maintenance
  • includes one flange kit
  • lock nuts are bulky and not flush
Brand Bosch
Model 1375A
Weight 5.2 pounds
Rating 3.5 / 5.0
7
The Porter-Cable PC60TAG offers a rugged 6-amp motor that can plow through jobs without any problems, making it perfect for contractors, plumbers, and electricians. It includes a tool-free guard release and alignment, so you can angle the sparks where you want them.
  • 3-year warranty
  • sturdy cast metal gear case
  • not as durable as we'd like
Brand PORTER-CABLE
Model PC60TAG
Weight 5.7 pounds
Rating 4.6 / 5.0
6
The Metabo WEV15-125 was designed with professionals in mind, with a variable speed output that allows you to match your RPM to the job. It has a new mechanical disc brake system that stops the disc within seconds of switching off the machine as an added measure of safety.
  • tool-free guard and disc removal
  • performs precise cuts on sheet metal
  • on the expensive side
Brand Metabo
Model WEV15-125
Weight 6.3 pounds
Rating 4.8 / 5.0
5
For DIYers and home improvement enthusiasts, the versatile Black & Decker 7750 is great for round-the-house work. It will give you 10,000 RPM, which is more than enough for most jobs, and when combined with its low price point, it makes for a handy little tool indeed.
  • metal gearshift for added durability
  • 3-position handle for max comfort
  • power switch is fragile
Brand BLACK+DECKER
Model BDEG400
Weight 4.9 pounds
Rating 4.0 / 5.0
4
If you want a tool that will last for years to come, the Makita 9557PBX1 has an exclusive labyrinth construction that seals the motor and bearing from dust and debris for a longer tool life. Plus, it comes with a hard case that keeps it safe and secure when not in use.
  • small barrel grip for easy operation
  • handle can be put on either side
  • gear housing rotates 90 degrees
Brand Makita
Model 9557PBX1
Weight 12 pounds
Rating 4.8 / 5.0
3
Designed with user safety in mind, the Skil 9296-01 features a non-locking paddle switch that's conveniently located on the bottom to keep your hands clear while you hold on to it, and it automatically turns off when released or dropped.
  • long power cord for easy movement
  • built-in wrench storage in handle
  • high quality at an affordable price
Brand Skil
Model 9296-01
Weight 6.1 pounds
Rating 4.7 / 5.0
2
The Metabo W9-115 can be locked in 7 different positions, so you'll be in great shape no matter the angle you're working on. The gear housing can also be rotated in increments of 90 degrees, making it versatile enough to be used by either left- or right-handed operators.
  • safety slip clutch reduces kickback
  • high torque for quick grinding
  • minimal vibrations
Brand Metabo
Model W9115
Weight 5.8 pounds
Rating 4.6 / 5.0
1
The DeWalt DWE402 gives you 1.8 horsepower in a 6-pound tool, so you'll enjoy a ton of brawn in a small, easy-to-handle package. It also comes with a one-touch guard that lets you rotate it 360 degrees with a single action, enabling you to finish jobs quickly.
  • tool-free wheel changing
  • side handle for increased comfort
  • long-lasting brush life
Brand DEWALT
Model DWE402
Weight 6.2 pounds
Rating 4.7 / 5.0

Buyer's Guide

All About Angle Grinders

Angle grinders are a relatively new power tool with a somewhat murky past. There are conflicting reports about who actually invented them, with some giving credit to the German company Ackerman and Schmitt in 1954, while others give credit to Thomas Joseph and claim it was invented in 1973. Either way, they are a newer invention than many of the other commonly used power tools. Angle grinders also go a by a couple of different names. They may be referred to as disc grinders or side grinders.

Depending on the model, an angle grinder may be powered by compressed air, gasoline, or an electric motor. They are a versatile tool that can be used to cut, grind, sand, or polish materials. For each of these different applications, a specific type of disc will be used. These discs include polishing pads, sanding discs, cut off discs, grinding stones, abrasive discs, wire brush wheels and more.

The disc will be mounted on a geared head that spins at speeds ranging from 4,000 RPM to 12,000 RPM. Most will have an adjustable guard to keep the user safe, and allow for two handed operation. Angle grinders make use of large bearings to counter the side forces generated during cutting.

Angle grinders are commonly found in a range of settings from workshops and construction sites to auto garages and emergency rescue situations. Some common uses include grinding rust off of a metal object, cutting through metal or concrete, removing paint, and polishing a range of metal objects. They can also be used for cutting through bricks, tile, and removing excess mortar.

Choosing An Angle Grinder

People new to using angle grinders are often lost when it comes time to purchase one because of the range of sizes available. A general rule of thumb is that the bigger the grinding disc, the better it will be for larger jobs. The smaller the disc, the easier it will be to control. When you see a grinder labeled as a 4.5-inch grinder, the manufacturer is referring to the disc size it accepts and not the length of the machine. If you are a homeowner that uses an angle grinder for periodic work around the house, then a 4.5-inch grinder should suffice. On the other hand, if you are a contractor who often needs to cut through large beams for deck work, a larger grinder would be a better choice.

The thickness of the material being cut should also come into consideration when picking an angle grinder. The measurement the manufacturer quotes is the diameter of the disc. This means and 4.5-inch angle grinder can only cut through materials that are 2 inches thick or less.

More often than not, smaller grinders will spin at higher speeds than larger grinders, but this is not a hard and fast rule so it always pays to check and understand the amp rating of the motor too. The more amps the motor has, the faster it will be. One must also take into account that a machine with a larger disc needs more amps to spin the disc at the same speed as a machine with a smaller disc.

This means that a 7-inch grinder with a 13 amp motor is going to spin at roughly the same speed as a 4.5-inch grinder with a 7 amp motor. The faster a grinder spins, the more susceptible it is to overheating, so it is a good idea to choose a model that has adjustable speed settings. This way you can set the motor to spin at the exact speed needed, with less worry about it overheating.

How To Use An Angle Grinder Safely

Angle grinders are an extremely useful tool, but they can also be very dangerous if used incorrectly. For this reason, it is important to follow a few safety tips. The three most common causes of injury when using an angle grinder are metal particles getting lodged in the operator's eye, kickback from the spinning force of the disc, and the disc shattering or exploding.

To reduce the chance of experiencing any of these injuries one must take the necessary precautions. First and foremost, operators should always wear safety goggles when using an angle grinder. Since angle grinders create a lot of dust when grinding, it is also a good idea to wear a dust mask, and work in a well ventilated area if possible. Wearing work gloves is also a smart idea as this offers your hands one more layer of protection against abrasion or cuts.

If you are unfamiliar with using an angle grinder, start your grinder on the lowest speed setting and do a few practice cuts or small grinding on an excess piece of material before working on your project. This will allow you to get a feel for the machine. As you get comfortable with the amount of kickback, you can increase the speed. Not only will working in this manner make it safer, it will also reduce the chance of making a mistake on the final project.

To reduce the possibility of the grinding wheel exploding, make sure the disc speed limit is higher than the angle grinder speed. If one uses a disc rated for 6,000 RPM on a grinder set to rotate at 10,000 RPM, there is a high possibility of the disc shattering as it overheats.



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Last updated on April 03, 2017 by Quincy Miller

Quincy is a writer who was born in Texas, but moved to Los Angeles to pursue his life-long dream of someday writing a second page to one of his screenplays.


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