Milwaukee 1/2" Compact Impact Wrench with Pin Detent

Using the Milwaukee 1/2" Compact Impact Wrench with Pin Detent (model 2855P-20) has been an enlightening experience, highlighting both the strengths and a few shortcomings of this compact powerhouse. This tool is part of Milwaukee’s M18 lineup, known for its robust performance and reliability. At just 4.9 inches in length, the compact design is immediately noticeable, making it an excellent choice for situations where space is at a premium.

One of the standout features of this impact wrench is its tri-LED lighting system. The three LEDs strategically positioned around the anvil provide excellent illumination, reducing shadows and ensuring that you can see what you're working on, even in dimly lit environments. This feature is particularly useful when working in tight, dark spaces such as under car hoods or in crawl spaces.

The power of this compact impact wrench is impressive for its size. With up to 250 ft-lbs of torque, it handles most fastening and nut-busting tasks with ease. I tested it on various automotive applications, including lug nuts and suspension bolts, and it performed admirably. The four-mode drive control adds to its versatility, allowing you to select the appropriate speed and power for different tasks. The auto shut-off mode is particularly useful in preventing over-tightening, which can save both time and material.

However, the tool is not without its limitations. While the 250 ft-lbs of torque is sufficient for most tasks, it occasionally struggled with more stubborn bolts, especially those that had been rusted in place. This limitation means that while the wrench is excellent for lighter to medium-duty tasks, it may not be the best choice for heavy-duty applications where higher torque is required. In such cases, a mid-torque or high-torque impact wrench might be more appropriate.

The tool's detent pin anvil is a bit of a double-edged sword. On the one hand, it ensures that sockets stay securely in place, which is crucial when working in tight spaces where you don’t want to be fumbling with loose sockets. On the other hand, the detent pin can be too strong at times, making it challenging to change sockets quickly. I found myself needing to use a small tool to push the pin in to release the socket, which can be a bit of a hassle, especially if you're in the middle of a job.

Another aspect worth mentioning is the tool’s balance and weight. Weighing in at 3.9 lbs, it is relatively lightweight and well-balanced, reducing fatigue during extended use. The ergonomics are good, with a comfortable grip that feels secure in the hand. However, the rubber grip does seem to have some issues with oil resistance. After using the tool in an environment where it was exposed to oils and lubricants, I noticed that the rubber began to degrade slightly. This is something to keep in mind if you frequently work with automotive fluids.

Battery performance is another critical factor, and the Milwaukee 1/2" Compact Impact Wrench does not disappoint. Using the M18 battery system, the tool offers excellent runtime, even with demanding tasks. I found that a fully charged battery could easily last through a day of intermittent use. However, to get the most out of this tool, I would recommend using the higher capacity batteries, like the 8.0Ah, as they provide the necessary power for more challenging tasks without frequent recharges.

Durability is a hallmark of Milwaukee tools, and this impact wrench is no exception. The construction feels solid, and the tool appears to be built to withstand the rigors of regular use. The brushless motor contributes to the tool’s longevity, offering better performance and reduced maintenance compared to brushed motors. Additionally, Milwaukee backs this tool with a 5-year limited warranty, providing peace of mind that the investment is protected.

In conclusion, the Milwaukee 1/2" Compact Impact Wrench with Pin Detent (2855P-20) is a solid addition to any toolbox. Its compact size, powerful performance, and excellent LED lighting make it a versatile tool for a wide range of applications. While it may not be the best choice for the most demanding heavy-duty tasks, it excels in lighter to medium-duty use cases, particularly where space is limited. The detent pin, while secure, can be a bit cumbersome, and the rubber grip could benefit from improved oil resistance. Nonetheless, these are relatively minor drawbacks in an otherwise impressive tool.

If you’re in the market for a compact impact wrench that offers a good balance of power, portability, and precision, I would recommend the Milwaukee 1/2" Compact Impact Wrench with Pin Detent. Its performance and features make it a valuable addition to any professional or DIY enthusiast’s toolkit.