Milwaukee Electric - M18TRADE BRUSHLESS 4-1/2 / 5 vs Rivlox Cordless Angle Grinder Kit, 3-inch Mini
Updated July 2026 — Milwaukee Electric - M18TRADE BRUSHLESS 4-1/2 / 5 wins on speed and power, Rivlox Cordless Angle Grinder Kit, 3-inch Mini wins on portability and value.
The Milwaukee grinder excels in power and performance, while the Rivlox offers great value and portability.
Why Milwaukee Electric - M18TRADE BRUSHLESS 4-1/2 / 5 is better
Power
Milwaukee delivers 11,000 RPM compared to Rivlox's lower performance.
Durability
Milwaukee is designed for heavy-duty tasks.
Brand Reputation
Milwaukee is known for high-quality professional tools.
Why Rivlox Cordless Angle Grinder Kit, 3-inch Mini is better
Price
Rivlox is significantly cheaper at $27.99.
Portability
Rivlox is compact and easy to handle.
Complete Kit
Rivlox includes batteries and charger.
Overall score
Specifications
| Spec | Milwaukee Electric - M18TRADE BRUSHLESS 4-1/2 / 5 | Rivlox Cordless Angle Grinder Kit, 3-inch Mini |
|---|---|---|
| Max RPM | 11,000 | Not specified |
| Battery | Tool only | 2 x 1500mAh |
| Weight | 5.5 lbs | 3.5 lbs |
| Guard Adjustment | Tool-free | Manual |
| Motor Type | Brushless | Brushed |
Dimension comparison
Overview of the Milwaukee Electric Cut-Off Grinder
The Milwaukee Electric - M18TRADE BRUSHLESS 4-1/2 / 5 Cut-Off Grinder is a robust tool designed for heavy-duty tasks. Priced at $110.00, it delivers impressive power with a maximum speed of 11,000 RPM, making it ideal for cutting and grinding various materials. This grinder features a paddle switch design, which enhances user control and comfort while working. Its tool-free guard adjustment and overload protection are significant advantages for both seasoned professionals and DIY enthusiasts. The Milwaukee cut-off grinder has a bestseller rank of 29,839, indicating its popularity among users.
Overview of the Rivlox Cordless Angle Grinder Kit
The Rivlox Cordless Angle Grinder Kit is a more compact and budget-friendly option, priced at $27.99. This 3-inch mini angle grinder is powered by a 12V lithium-ion battery, ensuring easy portability and convenience for indoor and outdoor projects. The high-speed motor provides reliable power for cutting, grinding, and polishing metals and wood. It also includes two batteries and a charger, making it a complete package for users looking to tackle various tasks. Despite its lower sales rank of 43,003, it offers excellent value for the price.
Performance Comparison
When it comes to performance, the Milwaukee grinder outshines the Rivlox option in terms of speed and power. With a maximum speed of 11,000 RPM, the Milwaukee grinder is significantly faster than the Rivlox, which, although not specified, operates at a lower performance capability due to its smaller size and motor constraints. The Milwaukee's robust design and electronic clutch allow for more efficient cutting and grinding, making it suitable for more demanding jobs. Conversely, the Rivlox excels in portability and ease of use, which may appeal to those who require a lighter tool for less intensive tasks.
Battery Life and Convenience
The Rivlox Cordless Angle Grinder Kit features a 1500mAh battery and a fast charger, allowing for extended runtime. This is a significant advantage for users who need to work without being tethered to a power source, as it eliminates cable tangling. In contrast, the Milwaukee grinder is a tool-only option, meaning users need to invest in batteries separately. While the Milwaukee grinder offers superior power, the Rivlox provides the convenience of a complete package, including two batteries, making it an excellent choice for casual users or those new to grinding tasks.
Design and Ergonomics
In terms of design, both grinders have user-friendly features. The Milwaukee grinder incorporates a paddle switch design, which allows for comfortable operation during extended use. Its tool-free guard adjustment adds to the convenience, enabling quick changes without tools. The Rivlox, on the other hand, boasts a non-slip rubberized handle and a secure spindle lock for safe accessory changes. Its compact size and ergonomic design make it easy to handle, especially for those with limited experience in using power tools. Overall, while both tools offer good ergonomics, the Milwaukee's design is tailored more for professional use.
Price Point Analysis
The price difference between the two grinders is quite notable. The Milwaukee grinder is priced at $110.00, while the Rivlox kit is available for just $27.99. This makes the Rivlox about 75% cheaper than the Milwaukee option. For users on a tight budget or those who only require a tool for occasional light tasks, the Rivlox presents a compelling choice. However, for professionals or dedicated enthusiasts who need a high-performance tool, the Milwaukee grinder justifies its higher price with enhanced capabilities and features.
Target Audience
The Milwaukee Electric grinder is tailored for professionals who require a reliable and powerful tool for demanding tasks. Its features and performance make it suitable for construction sites, metalwork, and serious DIY projects. In contrast, the Rivlox grinder is aimed at casual users and hobbyists who need a versatile tool for home renovations, light cutting, and polishing. Its affordability and compact design make it an excellent starter tool for those new to using grinders.
Which should you buy?
Ultimately, the choice between the Milwaukee Electric - M18TRADE BRUSHLESS 4-1/2 / 5 Cut-Off Grinder and the Rivlox Cordless Angle Grinder Kit depends on your specific needs and intended use. If you require a high-performance grinder for professional tasks, the Milwaukee option is worth the investment for its speed and durability. However, if you are looking for a budget-friendly, portable solution for light tasks, the Rivlox kit offers excellent value with its comprehensive package. Each grinder serves its purpose well, so consider your projects and preferences when making a decision.

