Best Angle Grinders Review and Complete Buying Guide

Best angle grinders

The best angle grinders will always rank among the most versatile power tools used by contractors and weekend warriors. Angle grinders, after all, can do a multitude of things from cutting and polishing, and even grinding. As you would probably learn by reading the best angle grinder reviews, this handheld power tool is the most commonly used type of powered grinder.
The angle grinder is a common fixture in auto shops, construction sites and metalworking shops where removal of excess material is usually required. Handymen may also find it very useful for light duty projects at home.

Why need an Angle Grinder


The best angle grinders may appear to be too advanced of a power tool for you, but you will realize that it can be very useful.
For one, you can use an angle grinder in sharpening blades. Chopping tools like axes, shears, and mower blades can be sharpened when you have an angle grinder at home.
Suppose that you need to remove old mortar. Using a chisel and hammer is not only difficult but also time-consuming. But as many best angle grinder reviews will tell you, an angle grinder can do the job faster especially when you have a diamond tuckpointing wheel attachment.
You can also maintain the good shape or work condition of garden tools like a shovel. Imagine how hard it would be to get rid of rust and caked-on cement from a shovel. But with the use of wire wheel attachment on an angle grinder, you can remove rust and flaking paint very easily.
You can also re-tile your floor with the use of an angle grinder. As you may read in other best angle grinder reviews, an angle grinder with a dry-cut diamond can cut through ceramic or stone tiles with relative ease.

Types of Angle Grinder


There are three types of angle grinder according to power source—electric, Gas-powered, and pneumatic or compressed air.
The Electric angle grinder is the most commonly used type, as it sources power from wall outlets, battery, or through a transformer for pro and building site use. It is ideal for light to medium duty applications. If you are looking for an angle grinder for DIY use, then this is the type of tool you need.
Gas-powered angle grinder, on the other hand, is more suited for use in a construction site. Those tools that are powered by gas are really large and powerful, able to cut through steel, bricks, and blocks. These are the rather expensive type of angle grinder, aside from being complicated to use.
Finally, compressed air-powered angle grinders are often used in auto shops. The compressor produces air to drive the tool. Like the gas-powered powered grinder, this type is expensive and designed for use of the pros.

Things To Consider Before Buying an Angle Grinder


If you want the best angle grinder you have to know what features to look for.

Disc Size: Generally speaking, the bigger the disc of the angle grinder, the more power its motor has. Discs come in many sizes, with the 115 mm or 4.5 inches and 230 mm or 9 inches arguably the most popular. If you need an angle grinder with a smaller disc, then you might have to go with a pneumatic grinder.

Motor Power: Angle grinders have different wattage, voltage, and amp ratings. You can choose from angle grinders between 500 and 2500 watts, and from 4 to 15 amps. You don’t need to get a unit with a powerful motor if you intend to use the angle grinder for household tasks, though.

Dust management: The product should have a good dust management. Ensure that you purchase the product which is appropriate for your need. The angle grinder must have some quality technology for dust management. Diamond blade can play a vital role here. No matter how much angle grinder costs, make sure you have the right product available there in the marketplace. A worthy dust management enables you enjoy the ease of working through an angle grinder.

Comfort: There are two things that can affect the comfort of use-size, and weight. Compact units are easier to use even for an extended period. It would also help if you use a unit with anti-vibration handles. But if you are to use the angle grinder for large and industrial jobs, a bigger unit is definitely recommended.

Speed ratings: Angle grinders can make anywhere from 5,000 to 10,000 rpm. But a unit with high-speed rating should be left to the pros, as it also has a higher risk of injury, especially if not handled correctly.

Safety features: The best angle grinders have features like a tool-less and easy-to-position wheel guard that lets users to reposition the guard, and safety slip clutch.

Our Pick For Best Angle grinders


We made a short list of 5 best angle grinders for you. That will help you to sort out the best angle grinder that is suitable for you. Let’s take a look at our best pick.

Short Review Of Our Selected Best Angle Grinders


Here is the short review of each top rated angle grinder that we selected for you. These reviews definitely help you to choice the best angle grinder that is best suited for you.

1. DEWALT D28402K 4-1/2-Inch Small-Angle Grinder Kit


DEWALT D28402K 4-1/2-Inch Small-Angle Grinder Kit

This ranks as among the best angle grinders in the market. It is a small yet versatile angle grinder that you can use for light duty applications, from cutting tiles to sharpening blades. Aside from being powerful, this unit gets positive reviews because the manufacturer even throws in a carrying case with enough room for accessories like wheels.DEWALT backs it with a three year limited warranty.

Specifications:


  1. Weight only 4.6 pounds
  2. Product Dimensions 9.1 x 6.6 x 19.9 inches
  3. Dust ejection system
  4. 1-piece brush armature that helps prevent brush hang-up due to dust ingress
  5. Maximum Speed 11000rpm
  6. 1.6 horsepower, 10 amp motor
  7. Arbor Size:5/8 in.
  8. 8 ft. power cord
  9. Paddle switch lock-off that offers user protection from accidental start-up
  10. Removable Handle
  11. Has Quick Changing Capabilities
  12. Voltage 120V

Benefits:

  • Has lots of power without overheating.
  • Great for cutting materials like ceramic tiles, brick, nails, among others.
  • It comes with a carrying case made of heavy duty plastic.
  • Its body is long enough to give you a good grip without covering the motor venting.
  • Quiet and vibration-free.
  • It has a long cord, allowing you not to be restricted by wall outlet location.

Drawbacks:

  • The case isn’t big enough to store some discs.

Summary of Customer Reviews:


The consensus among all online reviewers is that this angle grinder is very lightweight yet packed in features. They like that it is good enough for some light to medium duty applications. They also love that it comes with a heavy duty case, although they wish it was big enough to hold some discs.

2. Makita 9557PB 4-1/2-Inch Angle Grinder with Paddle Switch


Makita 9557PB 4-1/2-Inch Angle Grinder with Paddle Switch

This is one of the best angle grinders you can find today. This is a  small angle grinder that has a 7.5 amp motor with a high output power. It weighs only 4.5 pounds so you should have no problems using it for extended periods.  It has a labyrinth construction that seals and protects the motor from dust and debris. It also has an extra-large paddle switch that can make it more comfortable to use.

Specifications:


  1. Product Dimensions 14 x 5 x 6 inches
  2. Small diameter barrel grip at only 2-1/2 in. for added comfort
  3. Wire Cup Brush: 3-1/2 inch
  4. Sanding Disc: 4-1/2 inch
  5. Protective zigzags varnish to seal the armature from dust and debris
  6. Thicker coil wires that are wound more closely to reduce heat and energy loss
  7. All-ball bearing design and metal gear housing for durability
  8. Arbor Size:5/8 inch -11 UNC
  9. 8 ft. power cord
  10. Maximum Speed 10000 rpm
  11. built-in AC/DC switch to easily change modes
  12. Rotatable gear housing that you can position every 90-degree
  13. Includes 4-1/2″ Grinding Wheel, Lock Nut Wrench, Lock Nut, Inner Flange, Wheel Guard, Side Handle
  14. 1-year manufacturer warranty
  15. 1-year warranty on tool

Benefits:

  • Lightweight but with good power.
  • It has an egg crate foam on the lid, and a rubberized form for the tools and individual cutouts that provide superior protection for fragile wheels.
  • Paddle-switch operation with lock-off.
  • Lock-on with a push button located near the base of the paddle.
  • It comes with a lightweight aluminum case, four grinding wheels, and a diamond grinding wheel.
  • Well designed hand grip and trigger that can reduce hand fatigue.

Drawbacks:

  • The case isn’t super sturdy.

Summary of Customer Reviews:


The bottom line is that this Makita angle grinder would be a good addition to your tool box. It has a good combination of efficiency, comfort, power, and durability. It is also very lightweight and ergonomically designed that you can use it for extended period. It’s not surprising a lot of pros and DIYers call it among the best angle grinders.

3. DEWALT DWE402K 4-1/2″ 11amp Angle Grinder Paddle Kit


DEWALT DWE402K 4-1/2

Thanks to its 11 amp, 11,000 RPM motor, this angle grinder is very efficient when it comes to removal and cutting of materials. It has a one touch guard that makes it simple to use. It also allows 360 degree rotation of the guard. You simply bump it against the welding table so that it would rotate to your desired position. Its quick-change wheel release allows the removal of the wheel without the need of a wrench. Many contented owners attribute the long life of their respective units to the dust ejection system of the unit. And they say it feels comfortable in hand, even when used for an extended period. 

Specifications:


  1. Weight: 4.6lbs
  2. Arbor Size:5/8 inch -11 UNC
  3. Switch Type: Paddle
  4. Maximum Output Wattage: 1400W
  5. Maximum Speed 11000 rpm
  6. 6 ft. power cord
  7. 115-milimeter angle grinder with top mounted spindle lock for increased cut depth
  8. Over-heating protection for longer run time
  9. Includes: Grinder, One-Touch Guard, 2-Position Side Handle, Wrench, Kit Box.
  10. 1-year warranty, 1-year service contract, 3-year limited warranty, 90-day money-back guarantee

Benefits:

  • It is powerful and well-built.
  • Good value for money.
  • The safety guard latch can be rotated without a tool.
  • It can be locked in an “on” position to spare yourself from some hand fatigue especially over long grinding sessions.
  • Has a low profile design that enables it to get into tight spaces.
  • Not as noisy as other angle grinders in its price range.

Drawbacks:

  • It doesn’t come with any discs.

Summary of Customer Reviews:


This DEWALT angle grinder is highly recommended for any handyman because of its excellent features. The motor is powerful and its dust ejection system can ensure that the motor will be protected against dust and debris. It’s powerful and well-built and surprisingly isn’t as noisy as other angle grinders. 

4. Hitachi G12SR3 4-1/2″ 6-Amp Angle Grinder with 5 Abrasive Wheels


Hitachi G12SR3 4-1/2

This Hitachi angle grinder feels solid and powerful, according to those who have used it. They also add that it feels comfortable to hold.  It’s also very user-friendly, as exemplified by the handle capable of being moved to either left or right side depending on the material being cut. Hitachi adds a carrying case to the product. 

Specifications:


  1. Powerful 6 amp motor produces 400 watts of output power
  2. Has a 5/8-inch x 11 spindle thread
  3. Arbor size: 7/8-inch
  4. Product Dimensions: 10 x 2.5 x 2.5 inches
  5. Extended life auto-stop carbon brushes for added motor durability
  6. Small grip perimeter for a more comfortable hold
  7. Has a trigger lock-on for a comfortable and continuous operation.
  8. Has one-touch on/off switch
  9. 8 ft. power cord
  10. Volts: 110 V
  11. 30-day satisfaction guarantee and 1-year warranty
  12. Includes carrying case and five abrasive wheels

Benefits:

  • It is compact and lightweight a 3.1 pounds.
  • Because of its weight and compact frame, it is very maneuverable especially in tight spaces.
  • It is reliable enough for sharpening blades, finishing different steel types, grinding welded sections, and grinding away rusty parts, among others.
  • Its spindle lock is easy to manipulate. Located at the front of the grinder, it lets users to make quick and convenient changes of accessories as needed.
  • It has a side handle, which can project forward 70 degrees for a more comfortable and secure position.
  • It can be used by right and left-handed users.

Drawbacks:

  • The case included in the package doesn’t have enough space for the 8-foot long cord.

Summary of Customer Reviews:


Many users are amazed at the performance of this angle grinder. They say that it is powerful enough for tough jobs, but surprisingly lightweight and comfortable to use.  They agree it is among the best angle grinders.

5. DEWALT D28115 Heavy-Duty 4-1/2-Inch/5-Inch Grinder with Trigger Grip


DEWALT D28115 Heavy-Duty 4-1/2-Inch/5-Inch Grinder with Trigger Grip

This is a top rated angle grinder that has a 13 amp, 2.3 horsepower motor. Despite its small frame, it has the power comparable to a 9-inch grinder. It’s also very easy to use—simply pull the trigger and you’re off.  There’s no need to release a safety. And because it is small, DIYers and pros won’t suffer from hand fatigue when they use this high performance grinder. 

Specifications:


  1. Maximum Speed 9000 rpm
  2. 1-piece brush armature that helps prevent brush hang-up due to dust ingress
  3. Dual abrasion protection provides increased motor protection
  4. Max Watts Out: 1700W
  5. Spindle Thread: 5/8″-11
  6. Switch Type: Trigger
  7. Tool Length 15.25″
  8. Tool Weight 4.75lbs
  9. 90 Day Money Back Guarantee, 3 Year Limited Warranty, 1 Year Free Service Contract
  10. Includes 2-position side handle, 5″ keyless adjustable guard Wrench

Benefits:

  • Its trigger mechanism is ergonomically designed, and thus easy to control.
  • Quiet and vibration free.
  • Has quick-change wheel release that facilitates tool-free wheel removal.
  • It can last for a long time thanks to the dust ejection system of Dewalt.
  • The handle is relatively long but you will still be able to control it with one hand due to the stability of the tool.

Drawbacks:

  • It can be hard to find a case for this that can accommodate its discs.

Summary of Customer Reviews:


You likely won’t regret taking a chance on this top rated angle grinder with trigger grip. It is highly rated because of its excellent features like dust ejection system, quick-wheel change release, and vibration-reducing side handles. And backed by Dewalt with a three-year warranty, it is easy to understand why a lot of reviewers speak highly of this top rated angle grinder.

Accessories for an Angle Grinder


Let’s look at some accessories that you may need. 

Safety Glass


Whichever angle grinder you choose, it would be great if you couple it with some recommended accessories for angle grinder. One of those must-haves for an angle grinder user is a safety glass. This is a protective gear that can protect your eyes against flying particles.

Metal Cutting Wheel


You would also need a metal cutting wheel. Also known as grinding wheels, it consists of an abrasive compound and used in grinding machines like angle grinders. It can be very useful in cutting rebar, rusted bolts, and iron fencing.

DEWALT DW8061B5 4-Inch by 0.045-Inch Metal and Stainless Cutting Wheel, 5/8-Inch Arbor, 5-Pack


DEWALT DW8061B5 4-Inch by 0.045-Inch Metal and Stainless Cutting Wheel, 5/8-Inch Arbor, 5-Pack

DEWALT DW4523 4-1/2-Inch by 1/4-Inch by 5/8-Inch General Purpose Metal Grinding Wheel


DEWALT DW4523 4-1/2-Inch by 1/4-Inch by 5/8-Inch General Purpose Metal Grinding Wheel

Rim Diamond Masonry Blade


Then you might want to get a rim diamond masonry blade as well.  This accessory can help you in cutting hard materials like stone, glass, tile, granite, porcelain, and other materials that may easily chip. A rim diamond masonry blade has a solid, continuous rim or edge.

DEWALT DW4725 High Performance 4-1/2-Inch Dry Cutting Continuous Rim Diamond Saw Blade with 7/8-Inch Arbor for Masonry


DEWALT DW4725 High Performance 4-1/2-Inch Dry Cutting Continuous Rim Diamond Saw Blade with 7/8-Inch Arbor for Masonry

Makita A-94552 4-1/2-Inch Turbo Rim Diamond Masonry Blade


Makita A-94552 4-1/2-Inch Turbo Rim Diamond Masonry Blade

Wire Wheel/Carbon Steel


Finally, a wire wheel or carbon steel can give you a durable cutting action. It is ideal for cleaning application, and can make the cutting action of an angle grinder even more aggressive. These accessories should work well with any of the best angle grinders we mentioned earlier.

DEWALT DW4910 3-Inch by 5/8-Inch-11 Knotted Cup Brush/Carbon Steel .020-Inch


DEWALT DW4910 3-Inch by 5/8-Inch-11 Knotted Cup Brush/Carbon Steel .020-Inch

DEWALT DW4930 4-Inch by 5/8-Inch-11 Full Cable Twist Wire Wheel/Carbon Steel .020-Inch


DEWALT DW4930 4-Inch by 5/8-Inch-11 Full Cable Twist Wire Wheel/Carbon Steel .020-Inch

Safety  Tips


Even the best angle grinders can cause lacerations and other injuries when used improperly. You can avoid being the next victim by following these tips:

  • Always wear a face shield and gloves.
  • Make sure that the angle grinder attachment is appropriate for the task as well as the materials being worked.
  • Don’t use worn out or damaged attachments.
  • Don’t use a cutting disc without thoroughly examining it. If it has cracks or is worn out, then it might be more prudent not to use it anymore.
  • Don’t use the angle grinder if the guard is not attached or in the wrong place.
  • The grinder and attachment should be in good working condition before you use them.
  • Check electrical connections first before working.
  • It is highly advisable to buy or use an angle grinder with safety features like anti-kickback safety clutch and braking system.

Maintenance Tips


Here are some helpful reminders to ensure that your angle grinder will last for a long while:

  • Regularly wipe off any dust and debris that may have built up around the switch.
  • Check the gear box once in a while for any signs of metal or concrete dust accumulation, and wipe it off if needed.
  • After using the tool, wipe it clean with a damp cloth with emphasis on the external casing.
  • You can also use an air compressor to blow some compressed air on the air vents to remove dust particles that may clog the cooling fan.

Frequently Asked Questions


1. What are the common sizes of grinders and discs?
Answer: Usually, manufacturers produce grinders and discs in the following sizes:  115mm – 4 1/2 inches; 125mm – 5 inches; 150mm – 6 inches; 180mm – 7 inches and 230mm – 9 inches.

2. What is the most common use of an angle grinder?
Answer: Most of the best angle grinder reviews will tell you that the most common application or use of an angle grinder is to grind or sand away protruding or unwanted mortar, metal, or stone.

3. What are the most commonly used wheels?
Answer: Diamond, fiber, flapper, silicon carbide, wire/brush, and aluminum oxide are some of the most commonly used wheels in angle grinders.

4. What are the safety gear you need to use? 
Answer: Safety glasses, gloves, and decent footwear like pair of heavy boots can protect you while using an angle grinder.

My Recommendations


If you are still unsure on which angle grinder to get, then we’ll be blunt to pinpoint two of the best angle grinders—the DEWALT D28402K 4-1/2-Inch Small-Angle Grinder Kit and the Makita 9557PB 4-1/2-Inch Angle Grinder with Paddle Switch.
Both models are well recommended by Amazon.com reviewers and it is easy to understand why. Both are very useful for light to medium duty applications. These are also lightweight and easy to use even for an extended period. And there are lots of safety features incorporated in these units.

Final Word


Most of the best angle grinder reviews will underline the many uses of an angle grinder. Indeed, the best angle grinders can be the most versatile power tools you’ll ever have. From cutting tile to mortar, sanding or sharpening surfaces, to cleaning dirt and removing dust on your garden tools, the best angle grinders can practically do it all.

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