Milwaukee 2864-20 Fuel One-Key 3/4" High Torque Impact vs Protmex Cordless Impact Wrench, 900Ft-lbs 1/2"
Updated August 2026 — Milwaukee 2864-20 Fuel One-Key 3/4" High Torque Impact wins on brand trust and features, Protmex Cordless Impact Wrench, 900Ft-lbs 1/2" wins on battery life and weight.
The Milwaukee 2864-20 offers superior performance and advanced features, making it the better choice for heavy-duty tasks, while the Protmex is a budget-friendly option for lighter applications.
Why Milwaukee 2864-20 Fuel One-Key 3/4" High Torque Impact is better
Torque
Milwaukee has 1200 ft-lbs vs Protmex's 900 ft-lbs
Technology
Milwaukee features One-Key technology for tracking
Build Quality
Milwaukee is designed for professional use with robust construction
Why Protmex Cordless Impact Wrench, 900Ft-lbs 1/2" is better
Price
Protmex is significantly cheaper at $85.49
Battery
Protmex includes two 4.0Ah batteries for extended use
Weight
Protmex is lighter and easier to handle for casual users
Overall score
Specifications
| Spec | Milwaukee 2864-20 Fuel One-Key 3/4" High Torque Impact | Protmex Cordless Impact Wrench, 900Ft-lbs 1/2" |
|---|---|---|
| Max Torque | 1200 ft-lbs | 900 ft-lbs |
| Price | $319.99 | $85.49 |
| Batteries | N/A | 2 x 4.0Ah |
| Technology | One-Key | None |
| Sales Rank | 15815 | 13737 |
Dimension comparison
Price Comparison
The Milwaukee 2864-20 Fuel One-Key 3/4" High Torque Impact is significantly more expensive than the Protmex Cordless Impact Wrench. Priced at $319.99, the Milwaukee tool costs about 273% more than the Protmex, which is available for $85.49. This substantial price difference reflects the premium features and technology offered by Milwaukee, such as the One-Key technology for tracking and customizing tool performance. However, for budget-conscious consumers or casual users, the Protmex provides a very capable alternative at a fraction of the cost.
Performance Capabilities
In terms of performance, the Milwaukee 2864-20 leads with a maximum torque rating of up to 1200 ft-lbs for fastening and an impressive 1500 ft-lbs for nut-busting. This makes it a powerhouse for heavy-duty tasks. Conversely, the Protmex offers 900 ft-lbs of torque, which is adequate for most general applications but falls short compared to the Milwaukee. The Milwaukee's brushless motor technology enhances its efficiency and longevity, making it suitable for demanding environments. In contrast, the Protmex features a brushless motor as well but operates at a lower torque threshold.
Design and Build Quality
Both tools exhibit thoughtful design, but they cater to different user preferences. The Milwaukee 2864-20 is compact at 8.59 inches in length, making it one of the most compact high-torque impact wrenches available, enhancing its maneuverability in tight spaces. The Protmex, while not specified in dimensions, comes with a built-in LED light to improve visibility in dark areas, which is a significant advantage for users working in poorly lit conditions. The Milwaukee's construction quality is reflected in its higher price but may be appealing for professionals who require durability in rugged job sites.
Battery and Charging
Battery performance is another crucial factor when comparing these two impact wrenches. The Protmex comes equipped with two 4.0Ah batteries, allowing for extended use without frequent recharging. This is a practical feature for users who need to complete jobs quickly. In contrast, the Milwaukee's battery specifications are not detailed, but its One-Key technology implies a focus on optimized battery management. Users may find the Protmex's faster charging capabilities (one to two hours) beneficial for keeping the tool operational during busy work sessions.
Application Versatility
When it comes to versatility, both tools serve different needs. The Milwaukee 2864-20 is designed for heavy-duty applications and excels in professional settings, making it ideal for auto mechanics and industrial use. Its torque capabilities allow for efficient handling of tough bolts and fasteners. Meanwhile, the Protmex is marketed as suitable for a variety of tasks, including tire removal and maintenance on cars, vans, and agricultural machinery. This makes it a versatile choice for DIY enthusiasts and casual users who may not require the high torque of the Milwaukee but still want a reliable tool.
Technology Features
The Milwaukee 2864-20 incorporates advanced technology with its One-Key compatibility, enabling users to customize and track tool performance and location. This feature is particularly valuable for professionals managing multiple tools or job sites. On the other hand, the Protmex focuses on user-friendly features, such as its three-speed modes and easy-to-use controls. While it may lack the advanced tracking capabilities of the Milwaukee, it does provide intuitive operation for users of all skill levels, making it accessible for both amateurs and professionals.
User Experience
In terms of user experience, the Milwaukee 2864-20 offers a premium feel with its robust construction and advanced features, catering to professionals who demand reliability and performance. The Protmex, with its lightweight design and practical features like the built-in LED light, aims to enhance usability for everyday tasks. While the Milwaukee is ranked 15,815 in bestseller ranking, indicating its popularity among serious users, the Protmex, ranked 13,737, shows it also has a strong following, particularly among those looking for an economical yet effective tool.
Which should you buy?
Choosing between the Milwaukee 2864-20 Fuel One-Key 3/4" High Torque Impact and the Protmex Cordless Impact Wrench ultimately depends on your specific needs and budget. If you require a high-performance tool for heavy-duty applications and are willing to invest in advanced technology, the Milwaukee is the superior choice. However, if you are looking for a reliable, cost-effective solution for lighter tasks, the Protmex offers excellent value without compromising essential features. Consider your usage requirements, frequency of use, and budget to make the best decision for your tool collection.

