FULLYEA Cordless Angle Grinder 4-1/ vs PROMAKER 9 Amp Angle Grinder, 4-1/2 in. with
Updated July 2026 — FULLYEA Cordless Angle Grinder 4-1/ wins on battery and power, PROMAKER 9 Amp Angle Grinder, 4-1/2 in. with wins on price and accessories.
The FULLYEA Cordless Angle Grinder offers advanced technology and mobility, while the PROMAKER provides a cost-effective solution with a comprehensive accessory kit.
Why FULLYEA Cordless Angle Grinder 4-1/ is better
Cordless Design
Offers unmatched mobility for outdoor use.
Brushless Motor
Provides longer lifespan and better energy efficiency.
Battery Included
Comes with two batteries for extended runtime.
Why PROMAKER 9 Amp Angle Grinder, 4-1/2 in. with is better
Lower Price
Cheaper option at $34.99.
Accessory Kit
Includes multiple flap discs and brushes.
Warranty
Offers a two-year warranty for peace of mind.
Overall score
Specifications
| Spec | FULLYEA Cordless Angle Grinder 4-1/ | PROMAKER 9 Amp Angle Grinder, 4-1/2 in. with |
|---|---|---|
| Motor Type | Brushless | 9 Amp |
| No-Load Speed | 12000 RPM | 12000 RPM |
| Battery Life | Longer | Standard |
| Weight | Lightweight | Moderate |
| Warranty | Not specified | 2 Years |
Dimension comparison
Introduction to Angle Grinders
When it comes to angle grinders, the choice between a cordless model and a traditional electric one can significantly affect your project outcomes. In this comparison, we will examine the FULLYEA Cordless Angle Grinder and the PROMAKER 9 Amp Angle Grinder, focusing on their features, performance, and overall value. The FULLYEA is priced at $46.99, while the PROMAKER is about 26% cheaper at $34.99.
Power and Performance
Both grinders boast a powerful motor with a no-load speed of up to 12,000 RPM, making them suitable for heavy-duty tasks like cutting, grinding, and polishing. The FULLYEA features an upgraded brushless motor, which typically results in longer lifespan and better energy efficiency compared to traditional motors. On the other hand, the PROMAKER’s 9 Amp motor is designed specifically for metal work, offering versatility for both DIY projects and professional applications. Although both tools deliver exceptional performance, the brushless technology in the FULLYEA provides added durability.
Design and Ergonomics
In terms of ergonomics, the FULLYEA Cordless Angle Grinder is designed for user comfort with its dual non-slip auxiliary handles, allowing for stability whether you're left or right-handed. It also features a rotating safety guard to protect against debris. Conversely, the PROMAKER incorporates an innovative paddle switch system that enhances safety by stopping the grinder immediately when released. Additionally, its 3-position auxiliary handle provides flexibility and balance during extended use. Both designs cater well to user safety and comfort, but the paddle switch in the PROMAKER could be more appealing for those who prioritize immediate shut-off features.
Battery vs. Corded Operation
A significant difference between the two grinders lies in their power source. The FULLYEA is cordless, which means you can work without being tethered to an outlet, providing unmatched convenience, especially in outdoor settings. It comes with two 21V 4.0Ah batteries, effectively doubling your runtime and allowing you to swap batteries as needed. In contrast, the PROMAKER is a corded tool, which ensures consistent power but limits mobility. If you need a tool for a confined space or outdoor projects, the cordless nature of the FULLYEA makes it a more flexible choice.
Included Accessories
When it comes to included accessories, the PROMAKER provides a comprehensive kit with four flap discs, one grinding wheel, and two extra carbon brushes, which enhances the tool’s longevity and usability right out of the box. The FULLYEA also includes a robust package with multiple cutting wheels, a fast charger, and a removable handle, making it ready for a variety of tasks. While both tools offer valuable accessories, the PROMAKER’s additional discs and brushes may give it an edge for users looking for immediate functionality without extra purchases.
Warranty and Customer Support
The PROMAKER stands out with its two-year warranty, providing peace of mind for buyers who may have concerns about long-term use. This warranty covers potential defects and offers an assurance of quality. The FULLYEA does not explicitly mention a warranty period, which could be a consideration for potential buyers looking for a reliable long-term investment. While both brands provide customer support, the warranty from PROMAKER may sway those who prioritize long-term service and support.
Price and Value
When evaluating price, the FULLYEA is priced at $46.99, while the PROMAKER is about 26% cheaper at $34.99. This price difference can be significant for those on a budget or for DIY enthusiasts who may not require the advanced features of a cordless tool. Both grinders offer good value for their respective prices, but the PROMAKER’s lower cost and included accessories might appeal more to users looking for a more economical choice without sacrificing essential features.
Which should you buy?
Deciding between the FULLYEA Cordless Angle Grinder and the PROMAKER 9 Amp Angle Grinder ultimately depends on your specific needs and preferences. If you value mobility, versatility, and advanced technology, the FULLYEA's cordless design and brushless motor offer significant benefits. Alternatively, if you're looking for a robust, cost-effective option for metalworking that comes with a comprehensive accessory kit and warranty, the PROMAKER presents a compelling choice. Each tool serves its purpose well, so your decision should align with your project requirements and budget considerations.

