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Protmex Cordless Impact Wrench, 900Ft-lbs 1/2" vs ReliaRoads 900 Ft-lbs Cordless Impact Wrench, 1/

Updated August 2026 — Protmex Cordless Impact Wrench, 900Ft-lbs 1/2" leads on battery and speed.

The Protmex Cordless Impact Wrench offers better value with included batteries and higher RPM, while the ReliaRoads is a more budget-friendly option for those with existing DeWalt batteries.

Why Protmex Cordless Impact Wrench, 900Ft-lbs 1/2" is better

Included Batteries

Protmex includes two 4.0Ah batteries and a charger.

Higher RPM

Protmex reaches up to 3500 RPM compared to ReliaRoads' 900 ft-lbs.

User Features

Protmex has a two-way brake stop for added safety.

Why ReliaRoads 900 Ft-lbs Cordless Impact Wrench, 1/ is better

Lower Price

ReliaRoads is priced at $69.97, making it cheaper.

Battery Compatibility

ReliaRoads is compatible with DeWalt 20V batteries.

Lightweight

ReliaRoads may be lighter due to no included batteries.

Overall score

Protmex Cordless Impact Wrench, 900Ft-lbs 1/2"
85
ReliaRoads 900 Ft-lbs Cordless Impact Wrench, 1/
75

Specifications

SpecProtmex Cordless Impact Wrench, 900Ft-lbs 1/2"ReliaRoads 900 Ft-lbs Cordless Impact Wrench, 1/
Torque900 ft-lbs900 ft-lbs
RPM3500900
Batteries2 x 4.0AhNone
WeightUnknownUnknown
LED LightYesYes

Dimension comparison

Protmex Cordless Impact Wrench, 900Ft-lbs 1/2"ReliaRoads 900 Ft-lbs Cordless Impact Wrench, 1/

Overview of the Products

When comparing the Protmex Cordless Impact Wrench and the ReliaRoads 900 Ft-lbs Cordless Impact Wrench, the most significant difference lies in their pricing and battery compatibility. The Protmex is priced at $85.49, while the ReliaRoads is approximately 17% cheaper at $69.97. Both products are designed for high torque applications, making them suitable for automotive repairs and various construction tasks. However, the Protmex includes batteries and a charger, enhancing its overall value for users who might not already own a compatible battery.

Power and Performance

Both the Protmex and ReliaRoads impact wrenches boast a powerful output of 900 ft-lbs, allowing users to tackle stubborn bolts with ease. The Protmex features a variable speed control with three modes, reaching up to 3500 RPM, which is particularly advantageous for different applications. In contrast, the ReliaRoads employs a three-speed system that ranges from 450 to 900 ft-lbs. While both tools offer high torque, the Protmex’s faster RPM could make it more suitable for tasks requiring rapid engagement and disengagement of fasteners.

Battery and Charging

The Protmex comes equipped with two 4.0Ah batteries and a fast charger, ensuring a longer runtime and less downtime between uses. This is a significant advantage since it provides users with a continuous workflow. On the other hand, the ReliaRoads is designed to be compatible with DeWalt 20V MAX batteries, which means users need to purchase these separately if they don’t already own them. While the ReliaRoads offers the flexibility of battery choice, the Protmex’s bundled batteries make it a more convenient option for those who need an all-in-one solution.

Design and Usability

In terms of design, both impact wrenches prioritize user comfort and accessibility. The Protmex features a built-in LED light for improved visibility in dark spaces, which can be a game-changer when working in tight or poorly lit areas. The ReliaRoads also includes a built-in LED, enhancing its usability in similar situations. However, the Protmex's ergonomic design, combined with its two-way brake stop feature, may provide a more user-friendly experience overall, particularly for less experienced users who might benefit from additional safety features.

Applications and Versatility

Both the Protmex and ReliaRoads are versatile tools suitable for a range of applications, from automotive repairs to construction projects. The Protmex is explicitly noted for its capability to handle tasks involving rusty or corroded nuts and bolts, making it particularly useful for automotive maintenance. The ReliaRoads, while equally powerful, is more tailored for those who may already have a DeWalt battery system, allowing for seamless integration into existing toolsets. This compatibility could appeal to users looking for expansion rather than a standalone tool.

Build Quality and Durability

Both tools are built with brushless motors, a feature that not only enhances performance but also contributes to longevity. The Protmex claims to run 60.5% longer than traditional motors, suggesting a superior efficiency that can lead to less wear and tear over time. The ReliaRoads, while also featuring a brushless design, emphasizes constant torque technology, maintaining full power output even when using lower-capacity batteries. This focus on sustained performance is crucial for demanding applications, though it may not offer the same runtime advantages as the Protmex.

Pricing and Value

At $85.49, the Protmex is priced higher than the ReliaRoads, which retails for $69.97. This price difference of about $15.52 might make the ReliaRoads more appealing to budget-conscious consumers. However, considering the Protmex includes two 4.0Ah batteries and a charger, it offers a better value proposition for those who need a complete package. The Protmex's average sales rank of 13,737 compared to the ReliaRoads’ 15,813 suggests that users might prefer the Protmex for its comprehensive offering despite the higher initial cost.

Which should you buy?

Choosing between the Protmex Cordless Impact Wrench and the ReliaRoads 900 Ft-lbs Cordless Impact Wrench ultimately depends on your specific needs and existing tools. If you are looking for a complete package that includes batteries and a charger, the Protmex offers superior value and performance with its higher RPM and extensive features. Conversely, if you already own DeWalt batteries and are looking for a more budget-friendly option, the ReliaRoads is a solid choice with its reliable power and compatibility. Each tool has its strengths, making them both worthy contenders in the impact wrench market.