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Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion vs SEESII Cordless Mini Angle Grinder: 3-Inch

Updated July 2026 — Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion wins on build and power, SEESII Cordless Mini Angle Grinder: 3-Inch wins on weight and price.

The Milwaukee 2880-20 is a more powerful and durable option, while the SEESII is budget-friendly and lightweight for casual use.

Why Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion is better

Power

Milwaukee has superior performance for heavy-duty tasks.

Durability

Milwaukee is built for demanding environments.

Safety Features

Milwaukee includes advanced safety features.

Why SEESII Cordless Mini Angle Grinder: 3-Inch is better

Price

SEESII is significantly cheaper.

Weight

SEESII is lightweight and easy to handle.

Included Accessories

SEESII comes with multiple cutting discs.

Overall score

Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion
85
SEESII Cordless Mini Angle Grinder: 3-Inch
70

Specifications

SpecMilwaukee 2880-20 M18 Fuel Brushless Lithium-IonSEESII Cordless Mini Angle Grinder: 3-Inch
RPM8,50019,000
BatteryM1821V
Motor TypeBrushlessBrushless
Included BatteriesNone2
Spindle Size5/8"-113"

Dimension comparison

Milwaukee 2880-20 M18 Fuel Brushless Lithium-IonSEESII Cordless Mini Angle Grinder: 3-Inch

Overview

When it comes to cordless angle grinders, the Milwaukee 2880-20 and SEESII Cordless Mini Angle Grinder present two compelling choices. The Milwaukee model is priced at $143.99, while the SEESII offers a more budget-friendly option at $59.99, making it about 58% cheaper than its Milwaukee counterpart. Each grinder caters to different needs and preferences, so let's delve into their features, performance, and usability to see how they stack up against each other.

Design and Build Quality

The Milwaukee 2880-20 features a robust design that emphasizes durability, fitting for heavy-duty tasks. It comes equipped with an anti-vibration side handle, enhancing user comfort and safety during operation. In contrast, the SEESII Cordless Mini Angle Grinder is designed to be lightweight and compact, weighing only 1.85 lbs. This design makes it particularly suitable for extended use and one-handed operation, making it an ideal choice for lighter projects and DIY enthusiasts. While the Milwaukee grinder is built for tougher jobs, the SEESII offers an ergonomic advantage for casual users.

Power and Performance

The Milwaukee 2880-20 is known for its powerful performance, featuring an electronic clutch for kickback protection and overload protection to extend motor life. Meanwhile, the SEESII grinder boasts a brushless motor capable of reaching speeds up to 19,000 RPM with a power output of 210W. This allows it to tackle materials such as metal, wood, and stone effectively. The higher RPM of the SEESII makes it efficient for quick cuts and finishes. However, Milwaukee's focus on durability and safety features positions it as a more reliable option for demanding tasks.

Battery and Runtime

The Milwaukee 2880-20 is compatible with all M18 batteries, providing flexibility for users who may already own Milwaukee tools. The SEESII Cordless Mini Angle Grinder comes with two 21V 2.0Ah lithium batteries, ensuring ample power for extended use. The dual battery setup allows for continuous operation, which is a significant advantage for projects requiring longer runtimes. In terms of battery convenience, the SEESII has a slight edge due to its included batteries, making it ready to use right out of the box.

Versatility and Accessories

With the Milwaukee 2880-20, users can take advantage of its 5/8"-11 spindle, which is compatible with common grinding accessories. This versatility is beneficial for professionals who need a reliable tool for various applications. On the other hand, the SEESII comes with an all-in-one grinding kit that includes four cutting blades, a grinding wheel blade, a saw wood blade, and a stone cutting blade. This makes it an excellent choice for DIY enthusiasts looking to tackle different materials without needing to purchase additional accessories.

User Safety Features

Safety is a critical consideration when using power tools. The Milwaukee 2880-20 includes features such as an electronic clutch for kickback protection and overload protection, promoting safer operation during intense tasks. Similarly, the SEESII grinder is designed with an advanced cooling system and overheat and overload protection, ensuring safe operation during extended use. Both models emphasize safety, but Milwaukee's extensive safety features may appeal more to professionals who prioritize reliability in high-stakes environments.

Price and Value

At $143.99, the Milwaukee 2880-20 positions itself as a higher-end option, while the SEESII Cordless Mini Angle Grinder is priced at $59.99, making it a more budget-friendly choice. This price difference of about $84 can be significant for casual users or DIY enthusiasts who may not require the heavy-duty capabilities of the Milwaukee grinder. While the Milwaukee offers features suited for professional work, the SEESII provides excellent value for light projects, making it an attractive option for those with budget constraints.

Customer Reception

The Milwaukee 2880-20 holds a sales rank of 6,936, indicating a solid presence in the market, particularly among professionals and serious DIYers. The SEESII, with a sales rank of 59,855, may not be as popular, but its lower price point and compact design appeal to a different segment of users. The Milwaukee's higher rank reflects its reputation and reliability, while the SEESII's lower rank suggests it may cater more to casual users or those new to using angle grinders.

Which should you buy?

Choosing between the Milwaukee 2880-20 and the SEESII Cordless Mini Angle Grinder depends largely on your specific needs. If you're a professional or a serious DIYer who requires a robust and reliable tool for demanding tasks, the Milwaukee 2880-20 is worth the investment. Its safety features and compatibility with M18 batteries make it a strong contender for heavy-duty use. However, if you're looking for a lightweight, budget-friendly option for occasional projects, the SEESII offers excellent value with its included accessories and ease of use. Ultimately, your choice should align with your intended use and budget constraints.