AOBEN Cordless Angle Grinder 4-1/ vs Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion
Updated July 2026 — AOBEN Cordless Angle Grinder 4-1/ wins on speed and rank, Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion wins on price.
The AOBEN Cordless Angle Grinder offers great value and versatility, while the Milwaukee grinder excels in safety and durability.
Why AOBEN Cordless Angle Grinder 4-1/ is better
Price
AOBEN is significantly cheaper at $79.99.
Battery
Includes two 4.0Ah batteries for extended use.
Speed
Offers three adjustable speeds up to 9,500 RPM.
Why Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion is better
Safety
Features electronic clutch for kickback protection.
Comfort
Anti-vibration side handle enhances user comfort.
Brand Reputation
Milwaukee is known for high-quality, durable tools.
Overall score
Specifications
| Spec | AOBEN Cordless Angle Grinder 4-1/ | Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion |
|---|---|---|
| Motor Type | Brushless | Brushless |
| Clutch | None | Electronic |
| Handle Type | Standard | Anti-Vibration |
| Compatibility | N/A | M18 Batteries |
| Guard Type | 2 Guards | Standard |
Dimension comparison
Overview of the AOBEN Cordless Angle Grinder
The AOBEN Cordless Angle Grinder retails for $79.99, making it a more budget-friendly option compared to its competitor. This grinder features a brushless motor, which enhances power efficiency and prolongs the tool's lifespan. With a sales rank of 15,649, it appeals to users looking for a cost-effective, portable solution for a variety of grinding tasks.
This grinder kit includes two 4.0Ah batteries and a charger, ensuring extended use without the inconvenience of cords. Its three adjustable speeds, reaching up to 9,500 RPM, cater to various applications such as metal cutting, rust removal, and surface preparation. The inclusion of two wheel guards adds an extra layer of safety during operation, making it an appealing choice for both amateur and professional users.
Overview of the Milwaukee 2880-20 M18 Fuel Brushless Grinder
The Milwaukee 2880-20 M18 Fuel Brushless Grinder is priced at $143.99, which positions it about 80% higher than the AOBEN Cordless Angle Grinder. With a sales rank of 6,936, this grinder is a popular choice for those who prioritize performance and durability. Its brushless motor is designed for maximum efficiency, and the electronic clutch offers kickback protection, enhancing user safety during operation.
This model features an anti-vibration side handle that improves comfort and control, making it suitable for extended use. Additionally, it is compatible with all M18 batteries, allowing users to leverage existing Milwaukee battery systems. This grinder's robust construction and added safety features cater to professionals who demand reliability in their tools.
Performance Comparison
In terms of performance, both the AOBEN and Milwaukee grinders utilize brushless motors, but their applications may differ based on user needs. The AOBEN grinder boasts three adjustable speeds, allowing for versatility across various tasks, from grinding to cutting. With a maximum speed of 9,500 RPM, it can efficiently handle a range of materials.
On the other hand, the Milwaukee grinder's design focuses on safety and control, thanks to its electronic clutch and anti-vibration handle. While it may not have multiple speed settings, its robust construction and kickback protection may appeal to users who prioritize safety during demanding tasks. Thus, while AOBEN offers speed versatility, Milwaukee emphasizes user safety and comfort.
Battery and Runtime
The AOBEN Cordless Angle Grinder comes with two 4.0Ah batteries, providing a long runtime suitable for continuous work. This feature is particularly advantageous for users who require mobility without being tethered to a power source. The inclusion of two batteries ensures that users can quickly swap them out, minimizing downtime.
Conversely, the Milwaukee 2880-20 is designed to be compatible with all M18 batteries, which may appeal to users already invested in the Milwaukee battery ecosystem. However, as it is sold as a tool-only option, buyers will need to purchase batteries separately, which adds to the overall investment. For users prioritizing runtime and convenience, the AOBEN grinder provides a more comprehensive package with its included batteries.
Safety Features
Safety is a key consideration when choosing an angle grinder, and both models incorporate essential features. The AOBEN grinder includes two wheel guards, which protect users from flying debris and sparks during operation. This feature is crucial for anyone using the tool for cutting and grinding tasks.
The Milwaukee grinder enhances safety through its electronic clutch, which provides kickback protection, and its anti-vibration side handle, which improves user comfort. While both grinders offer safety measures, Milwaukee’s additional focus on kickback protection may attract professionals who require extra assurance during heavy-duty operations.
Build Quality and Design
The build quality of both grinders reflects their intended use. The AOBEN Cordless Angle Grinder features a compact and handy design, making it easy to handle during operation, especially in tight spaces. Its two wheel guards further enhance its usability by allowing for various cutting applications.
In contrast, the Milwaukee grinder is crafted with a focus on durability and user comfort, featuring an anti-vibration side handle. This design consideration makes it suitable for prolonged use, which is essential for professionals who may spend extended hours on projects. Ultimately, while the AOBEN grinder is designed for versatility and user convenience, the Milwaukee model prioritizes durability and ergonomic comfort.
Price Consideration
Price is a significant factor when comparing these two models. The AOBEN Cordless Angle Grinder is priced at $79.99, while the Milwaukee 2880-20 is considerably higher at $143.99. This difference of about $64 highlights the budget-friendliness of the AOBEN grinder, making it an appealing choice for casual users or those new to angle grinders.
However, for users willing to invest more for added safety features and compatibility with existing Milwaukee batteries, the Milwaukee grinder may justify its higher price. Each tool has its strengths, but the AOBEN offers a more economical option without sacrificing essential features for most home and light professional uses.
Which should you buy?
Choosing between the AOBEN Cordless Angle Grinder and the Milwaukee 2880-20 ultimately hinges on your specific needs and budget. If you are looking for a versatile, cost-effective tool for general use, the AOBEN grinder is a fantastic choice, especially with its included batteries and adjustable speeds.
Conversely, if you prioritize safety features, durability, and already own Milwaukee tools, the Milwaukee 2880-20 may be worth the higher investment for its robust performance and user comfort. Assessing your intended use and budget will guide you in making the right decision between these two capable angle grinders.

