DEWALT Angle Grinder, 4. vs Ryobi 5133001903 R18AG-0 One+ Cordless Angle Grinder Angled
Updated July 2026 — DEWALT Angle Grinder, 4. wins on power and convenience, Ryobi 5133001903 R18AG-0 One+ Cordless Angle Grinder Angled wins on portability and value.
The DEWALT Angle Grinder offers superior power and durability, making it the better choice for demanding tasks, while the Ryobi provides portability at a lower price.
Why DEWALT Angle Grinder, 4. is better
Power
DEWALT has a powerful 11 amp motor.
Durability
DEWALT features a Dust Ejection System.
Convenience
DEWALT includes a quick-change wheel release.
Why Ryobi 5133001903 R18AG-0 One+ Cordless Angle Grinder Angled is better
Portability
RYOBI is cordless for easy mobility.
Price
RYOBI is more budget-friendly.
Lightweight
RYOBI is designed for lighter tasks.
Overall score
Specifications
| Spec | DEWALT Angle Grinder, 4. | Ryobi 5133001903 R18AG-0 One+ Cordless Angle Grinder Angled |
|---|---|---|
| Motor | 11 Amp | Not specified |
| RPM | 11,000 | Not specified |
| Weight | Not specified | Lightweight |
| Battery | N/A | Cordless |
| Warranty | 3 Years | Not specified |
Dimension comparison
Introduction to Angle Grinders
When it comes to angle grinders, two popular options are the DEWALT Angle Grinder and the Ryobi R18AG-0 Cordless Angle Grinder. Both tools serve similar purposes but cater to different user needs. The DEWALT model is priced at $94.00 and boasts a powerful 11 amp motor, while the Ryobi, which costs $62.29, offers the convenience of cordless operation. Understanding the strengths of each can help you make an informed decision.
Power and Performance
The DEWALT Angle Grinder features a robust 11 amp motor that operates at 11,000 RPM, providing excellent power and performance for demanding tasks. This powerful motor enables the tool to handle tough materials with ease. In contrast, the Ryobi R18AG-0 is a cordless model, which means it may sacrifice some power for the convenience of portability. While the Ryobi does not specify its motor's RPM or amp rating, the lack of detailed performance metrics suggests it is designed for lighter tasks. If power is your priority, the DEWALT grinder stands out significantly.
Design and Ergonomics
The DEWALT Angle Grinder is equipped with an ergonomic compact design that ensures user comfort during extended use. It features a uniquely small gripping surface and a newly designed side handle, making it comfortable to operate. The tool also includes a one-touch guard for easy 360-degree rotation. On the other hand, the Ryobi R18AG-0, while also designed for ease of use, does not provide specific ergonomic features in its description. If comfort and ease of use are essential factors for you, the DEWALT model may be the better choice.
Durability and Maintenance
Durability is a critical factor in any power tool, and the DEWALT Angle Grinder shines in this area with its Dust Ejection System, designed to expel damaging dust and debris. This feature helps prolong the tool's life, making it suitable for heavy-duty applications. Additionally, the over-sized brushes in the DEWALT model offer double the lifespan compared to previous models. Conversely, the Ryobi R18AG-0 does not mention any advanced durability features, which may suggest it is less suited for demanding environments. For those prioritizing longevity and maintenance, the DEWALT grinder is likely the superior option.
Convenience Features
The DEWALT grinder includes several convenient features such as a quick-change wheel release, which allows for tool-free wheel changes without needing a wrench. This feature can save time during projects. The auto-off brushes are another significant convenience, shutting down the tool when the brushes need replacement to avoid damage. In contrast, the Ryobi R18AG-0 lacks detailed information on similar convenience features, which may limit its usability for some tasks. If ease of use and efficiency are priorities, the DEWALT Angle Grinder has a clear advantage.
Price Comparison
The DEWALT Angle Grinder is priced at $94.00, while the Ryobi R18AG-0 is more budget-friendly at $62.29. This represents a difference of approximately 34% in favor of the Ryobi. However, it's essential to weigh this cost against the performance and features provided. If you're looking for a tool that offers robust power and durability, the higher price of the DEWALT may be justified. On the other hand, if you need a basic grinder for lighter tasks and prefer a lower upfront cost, the Ryobi could be the right choice.
Portability and Battery Life
One of the standout features of the Ryobi R18AG-0 is its cordless design, which provides unmatched portability. Users can easily move around without being tethered to a power outlet, making it ideal for outdoor jobs or locations without easy access to electricity. However, the specifics of the battery life are not mentioned, which could be a crucial factor for extended use. The DEWALT, while not cordless, provides consistent power without worrying about battery charge, making it better suited for prolonged projects. If mobility is paramount, the Ryobi excels, but the DEWALT may offer more reliable performance for demanding tasks.
Which should you buy?
In conclusion, your choice between the DEWALT Angle Grinder and the Ryobi R18AG-0 should be guided by your specific needs. If you prioritize power, durability, and a host of convenience features, the DEWALT model is worth the higher investment at $94.00. However, if you are looking for a more portable option and a lower price point at $62.29, the Ryobi offers a decent solution for lighter applications. Ultimately, understanding what you need from an angle grinder will help you make the right decision for your projects.

