Milwaukee Cordless 3/8" Impact Wrench

As a long-time DIY enthusiast and occasional automotive tinkerer, I’ve had my fair share of experiences with various power tools. Recently, I had the opportunity to test out Milwaukee's Cordless 3/8" Impact Wrench, model number 2658-20, and it left quite an impression.

First Impressions and Build Quality

Straight out of the box, the Milwaukee 3/8" Impact Wrench feels robust and well-built. The tool's compact and lightweight design, weighing in at just 4.1 lbs, is immediately noticeable and appreciated. Its dimensions (5.75 inches in length, 9.1 inches in height, and 4 inches in width) make it a practical option for tight spaces where larger wrenches would struggle. The tool-only packaging means you'll need to have compatible M18 batteries and a charger on hand, but if you're already invested in Milwaukee's ecosystem, that's not a dealbreaker.

The 3/8" Friction Ring anvil is a standout feature, facilitating quick and easy socket changes without the hassle of pins. This is particularly useful when you're in the middle of a job and need to switch sockets swiftly.

Power and Performance

One of the most critical aspects of any impact wrench is its power output. The Milwaukee 3/8" Impact Wrench boasts a fastening torque and nut-busting torque of 167 ft-lbs, which is quite impressive for a tool of this size. During my testing, the wrench handled various tasks with ease, from automotive repairs to general home maintenance. It provided more than enough power to remove stubborn bolts and fasteners, although it did struggle slightly with particularly tight or corroded bolts. For most everyday applications, however, the power is more than sufficient.

The tool operates at a no-load RPM range of 0-2,450 and an impact rate of 0-3,350 IPM, delivering a balanced combination of speed and power. The 4-Pole frameless motor enhances durability and runtime, ensuring the wrench can withstand heavy use over extended periods.

Innovative Features

Milwaukee has integrated several innovative features into this impact wrench. Notably, the REDLINK™ Intelligence system is designed to optimize performance and provide overload protection. This smart technology ensures that the tool operates efficiently while preventing damage from excessive use or overheating.

The built-in LED light is another thoughtful addition, improving visibility in dimly lit work areas. As someone who frequently finds themselves working in poorly lit garages or under vehicles, this feature proved to be particularly useful. Additionally, the reversible belt clip offers convenient storage when the tool isn't in use, allowing you to keep it within reach without needing to set it down.

Ergonomics and Usability

One of the most significant advantages of this impact wrench is its ergonomic design. The handle is comfortable to grip, reducing fatigue during extended use. The balance of the tool also feels just right, making it easy to maneuver and control. For tasks that require precision, such as working on delicate automotive components, this level of control is invaluable.

The compact size of the wrench allows it to fit into tight spaces where larger tools simply can't go. Whether you're reaching into an engine bay or working under a sink, the Milwaukee 3/8" Impact Wrench's small footprint is a definite advantage. However, its compact nature does come with a slight trade-off in power, as mentioned earlier. While it handles most tasks admirably, there are occasions where a bit more torque would be beneficial.

Battery Life and Compatibility

One of the strengths of Milwaukee's M18 system is the long battery life, and this impact wrench is no exception. During my testing, the battery life was impressive, allowing me to complete multiple tasks on a single charge. The on-board fuel gauge is a handy feature, providing a quick and easy way to check the remaining battery life at a glance.

If you're already invested in Milwaukee's M18 ecosystem, you'll find that the batteries are interchangeable with other M18 tools, adding a layer of convenience and cost-efficiency. For those new to Milwaukee, the initial investment in batteries and a charger is worth considering, but the long-term benefits and compatibility with a wide range of tools make it a worthwhile investment.

Durability and Longevity

Milwaukee tools are known for their durability, and the 3/8" Impact Wrench lives up to that reputation. The tool feels solid and well-constructed, capable of withstanding the rigors of regular use. The 5-year limited warranty provides added peace of mind, ensuring that the tool is protected against defects and issues.

Areas for Improvement

While the Milwaukee 3/8" Impact Wrench is an excellent tool overall, there are a few areas where it could be improved. As mentioned, a slight increase in torque would enhance its versatility, allowing it to handle even the most stubborn bolts with ease. Additionally, while the friction ring anvil is convenient, there was a rare occurrence where it didn't hold the socket as securely as I would have liked. These are minor issues, but addressing them would elevate the tool's performance even further.

Final Thoughts and Recommendation

In conclusion, the Milwaukee 3/8" Impact Wrench is a fantastic addition to any tool collection, particularly for those who value portability, ease of use, and reliable performance. Its compact design, impressive power, and innovative features make it a versatile tool capable of handling a wide range of tasks. Whether you're a DIY enthusiast, a professional mechanic, or someone who simply needs a reliable impact wrench for occasional use, this tool is well worth considering.

I highly recommend the Milwaukee 3/8" Impact Wrench for its excellent build quality, thoughtful design, and overall performance. While it may have some minor limitations, its benefits far outweigh any drawbacks. This tool is a testament to Milwaukee's commitment to producing high-quality, dependable tools that deliver when it matters most.