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10 Best Ryobi Angle Grinders 2026 in the United States

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Our Top Picks

#1

Winner

Ryobi 5133001903 R18AG-0 One+ Cordless Angle Grinder Angled

Rating
10.0
Chosen by1,350
Power (Amps or Watts)
Speed (RPM)
Ergonomics

Most important from
4466 reviews

Power (Amps or Watts)
Offers worthwhile capability, making it a better option than lugging around a generator.
Speed (RPM)
Runs slower than AC models but has sufficient torque to be effective and decent battery life.
Ergonomics
Features surpass those of corded models, providing convenience in use.
Battery Life (for Cordless Models)
Runs slower than AC models but has sufficient torque to be effective and decent battery life.

The Ryobi 5133001903 R18AG-0 One+ Cordless Angle Grinder is a battery-powered tool that stands out in its category with a maximum rotational speed of 9000 RPM and a power rating of 4 horsepower. This makes it suitable for a range of grinding tasks. The grinder is relatively lightweight at 5.76 pounds (2.62 kilograms), which aids in maneuverability and reduces user fatigue.

The angled design is beneficial for working on projects that require precision in tight spaces. However, the product does not include a battery, which needs to be purchased separately, potentially adding to the cost. The tool operates on an 18-volt lithium-ion battery, contributing to its cordless convenience but also necessitating regular charging.

The ergonomics are solid, with a design that includes user-friendly features. This angle grinder is a good fit for DIY enthusiasts and professionals looking for a powerful, portable tool. Users should be prepared for additional purchases to optimize its functionality, owing to the lack of an included battery.

Rating
10.0
Chosen by1,350
Power (Amps or Watts)
Speed (RPM)
Ergonomics

Most important from
4466 reviews

Power (Amps or Watts)
Offers worthwhile capability, making it a better option than lugging around a generator.
Speed (RPM)
Runs slower than AC models but has sufficient torque to be effective and decent battery life.
Ergonomics
Features surpass those of corded models, providing convenience in use.
Battery Life (for Cordless Models)
Runs slower than AC models but has sufficient torque to be effective and decent battery life.
#2

Ryobi P421 6500 RPM 4 1/2 Inch 18-Volt One+ Lithium Ion-Powered Angle Grinder (Battery Not Included, Power Tool Only)

Rating
9.7
Weight
Safety Features
Battery Life (for Cordless Models)

Most important from
913 reviews

Weight
Its proper weight allows you to feel it without being heavy after hours of work.
Safety Features
The safety trigger lock and three different positions for the lateral handle enhance usability and safety.
Battery Life (for Cordless Models)
The batteries interchange and store a lot of charge, adding to the overall convenience and value.

The Ryobi R18AG-0 is a versatile cordless angle grinder designed for both home improvement and metalworking projects. It operates on an 18V battery and boasts a 115mm disc size with a maximum speed of 7500 RPM, making it suitable for a variety of grinding tasks. The tool is lightweight at 4.8 pounds, which helps in reducing user fatigue during prolonged use. Additionally, the adjustable side handle and rotational grip provide flexibility and ease of use in different positions, enhancing its ergonomics.

The rubberized grip ensures comfortable handling even in greasy or oily conditions, which is a thoughtful feature for safety and control. However, it’s important to note that the package does not include a battery, so one needs to be purchased separately if you don't already own a compatible Ryobi battery from the One+ series. The onboard pin wrench and included Type 27 grinding wheel are convenient, allowing for easy disc replacements.

This model is well-suited for DIY enthusiasts and occasional users who need a reliable and adaptable tool for various grinding applications. While the grinder's speed is considerable, it is slightly lower than some competitors, which might be a drawback for users needing faster grinding.

Rating
9.7
Weight
Safety Features
Battery Life (for Cordless Models)

Most important from
913 reviews

Weight
Its proper weight allows you to feel it without being heavy after hours of work.
Safety Features
The safety trigger lock and three different positions for the lateral handle enhance usability and safety.
Battery Life (for Cordless Models)
The batteries interchange and store a lot of charge, adding to the overall convenience and value.
#3

Ryobi R18AG7-0 18V ONE+ Cordless Brushless Angle Grinder (Body Only), Hyper Green

Rating
9.4
Power (Amps or Watts)
Speed (RPM)
Weight

Most important from
1761 reviews

Power (Amps or Watts)
This grinder delivers performance similar to a corded model, ensuring powerful and efficient operation.
Speed (RPM)
The E-control technology maintains a constant cutting speed, providing smoother operation for various tasks.
Weight
The grinder's relatively lightweight design makes it easy to use over extended periods, though its larger size might be bulky for some users.
Safety Features
E-protect feature adds a significant safety benefit by shutting down the tool in case of kick-back, reducing the risk of accidents.
Ergonomics
The 3-position auxiliary handle enhances control and makes it easier to handle in different positions.

The Ryobi R18AG7-0 18V ONE+ Cordless Brushless Angle Grinder is a versatile tool designed for those who need portability without sacrificing power. Its brushless motor ensures a high performance that feels similar to using a corded model. This grinder is equipped with E-control technology, maintaining a constant cutting speed for smoother operation. The E-protect feature is particularly notable for safety, as it shuts down the tool in case of kick-back, reducing the risk of accidents.

The 3-position auxiliary handle adds to the control, making it easier to handle in various positions. The grinder comes with a 125mm grinding disc but does not include the required battery, so you'll need to purchase that separately if you don’t already own a compatible ONE+ battery. Weighing 4.62 pounds, it's relatively lightweight, which adds to its ease of use over extended periods. However, its larger dimensions might make it a bit bulky for some users.

The bright hyper green color makes it easy to spot among other tools. This Ryobi model is ideal for DIY enthusiasts and professionals who need a reliable and portable tool, delivering in performance and safety features, though the need to purchase a separate battery may be a drawback for some. Its durability suggests a dependable choice for various grinding tasks.

Rating
9.4
Power (Amps or Watts)
Speed (RPM)
Weight

Most important from
1761 reviews

Power (Amps or Watts)
This grinder delivers performance similar to a corded model, ensuring powerful and efficient operation.
Speed (RPM)
The E-control technology maintains a constant cutting speed, providing smoother operation for various tasks.
Weight
The grinder's relatively lightweight design makes it easy to use over extended periods, though its larger size might be bulky for some users.
Safety Features
E-protect feature adds a significant safety benefit by shutting down the tool in case of kick-back, reducing the risk of accidents.
Ergonomics
The 3-position auxiliary handle enhances control and makes it easier to handle in different positions.

Buying Guide for the Best Ryobi Angle Grinders

When choosing an angle grinder, it's important to consider the specific tasks you plan to use it for. Angle grinders are versatile tools that can be used for cutting, grinding, polishing, and sanding various materials. To find the best fit for your needs, you should evaluate the key specifications and understand how they impact the tool's performance and suitability for your projects.
Power (Amps or Watts)The power of an angle grinder is typically measured in amps (for corded models) or watts (for cordless models). This spec indicates the tool's ability to handle tough jobs. Higher power means the grinder can cut through harder materials and perform more demanding tasks. For light-duty tasks like polishing or light grinding, a lower power (around 5-7 amps) is sufficient. For heavy-duty tasks like cutting metal or concrete, look for a grinder with higher power (8-12 amps or more). Choose based on the intensity and frequency of your projects.
Disc SizeThe disc size of an angle grinder determines the size of the material it can cut or grind. Common sizes are 4.5 inches, 5 inches, and 7 inches. Smaller discs (4.5-5 inches) are suitable for precision work and lighter tasks, while larger discs (7 inches) are better for heavy-duty cutting and grinding. Consider the type of work you will be doing most often. If you need versatility and ease of handling, a smaller disc size is ideal. For larger, more demanding projects, opt for a larger disc size.
Speed (RPM)The speed of an angle grinder is measured in revolutions per minute (RPM). Higher RPMs mean the grinder can cut or grind more quickly. Typical speeds range from 5,000 to 11,000 RPM. For general-purpose use, a speed of around 8,000-10,000 RPM is adequate. If you need to perform tasks that require precision and control, such as polishing, a lower speed is preferable. For heavy-duty cutting and grinding, higher speeds are more efficient. Match the speed to the specific tasks you plan to perform.
WeightThe weight of an angle grinder affects its ease of use and maneuverability. Lighter grinders (around 4-6 pounds) are easier to handle and control, making them suitable for extended use and precision tasks. Heavier grinders (7 pounds and above) provide more stability and power for heavy-duty tasks but can be tiring to use for long periods. Consider your physical strength and the duration of your typical projects when choosing the weight of your grinder.
Safety FeaturesSafety features are crucial in an angle grinder to protect the user from potential hazards. Common safety features include adjustable guards, anti-kickback protection, and paddle switches. Adjustable guards help protect you from debris and sparks, while anti-kickback protection prevents the tool from jerking if the disc binds. Paddle switches are safer than standard switches as they automatically turn off when released. Prioritize safety features based on your experience level and the types of tasks you will be performing.
ErgonomicsErgonomics refers to the design of the angle grinder that makes it comfortable and easy to use. Look for features like a comfortable grip, adjustable side handles, and vibration reduction. A comfortable grip and adjustable handles allow for better control and reduce fatigue during extended use. Vibration reduction minimizes hand strain and improves precision. Choose a grinder with ergonomic features that match the duration and intensity of your typical projects to ensure comfort and efficiency.
Battery Life (for Cordless Models)For cordless angle grinders, battery life is a critical factor. It determines how long you can use the tool before needing to recharge. Battery life is influenced by the battery's capacity (measured in amp-hours, Ah) and the power demands of the grinder. Higher capacity batteries (4-6 Ah) provide longer run times but may add weight to the tool. Consider the duration of your typical tasks and whether you have access to spare batteries or charging facilities. Choose a battery life that ensures uninterrupted work for your projects.

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