DeWalt Brushless Cordless Grinder

The Brushless Cordless Grinder from DeWalt, model DCG418B, is a robust addition to any toolkit, whether for a seasoned contractor or an ambitious DIY enthusiast. The combination of its advanced features and impressive power output makes it a standout in the realm of cordless grinders.

One of the most striking aspects of this tool is its powerful brushless motor. DeWalt has designed this grinder to deliver an equivalent power of a 13 Amp corded motor, reaching an impressive 9000 rpm no-load speed. This level of performance ensures it can handle heavy-duty grinding and cutting tasks with ease. From grinding concrete to cutting through metal, the tool doesn't shy away from demanding applications.

The grinder’s brake system is a feature I particularly appreciated. Safety is always a concern when dealing with high-speed tools, and the brake engages quickly when the trigger is released, stopping the wheel in just 1.5 seconds. This rapid stop feature not only adds a layer of safety but also enhances productivity by minimizing downtime between tasks.

Another innovative safety feature is the Kickback Brake and E-CLUTCH® system. These mechanisms activate in the event of a pinch, stall, or bind-up, stopping the wheel and motor almost instantly. This is crucial in preventing accidents and ensuring user safety, especially when working with materials that can cause the wheel to bind.

Ergonomics play a significant role in the design of this grinder. Despite its power, it is relatively light, weighing in at around 2 kg. The tool's balance and grip are well-thought-out, making it comfortable to use for extended periods. The secondary handle provides additional stability, which is useful when maneuvering in tight or awkward spaces. The ability to rotate the head independently of the body is another thoughtful feature, allowing for greater flexibility and precision in various grinding positions.

However, the grinder is not without its drawbacks. The reliance on the 60V MAX* battery system can be a double-edged sword. While the Flexvolt batteries provide excellent power and runtime, they are not compatible with DeWalt's more common 20V battery systems, which may necessitate an additional investment for those who do not already own Flexvolt batteries. Moreover, the battery life can be a concern, especially under continuous heavy use. While the 9Ah battery offers considerable runtime, it can still drain quickly during demanding tasks. This means you may need to have spare batteries on hand to avoid interruptions.

In terms of build quality, the grinder feels solid and durable. The materials and construction are typical of DeWalt’s high standards, ensuring it can withstand the rigors of a construction site. The guards are easy to adjust and provide adequate protection, and the tool-free wheel change system is a convenient addition that streamlines the process of switching between wheels.

The brushless motor not only contributes to the tool's power but also enhances its longevity. Brushless motors tend to run cooler and more efficiently, reducing wear and tear over time. This is a significant advantage for those who use their tools heavily and need them to last.

While the tool’s weight with the battery attached can be a bit hefty, it is a trade-off for the power and portability it offers. The convenience of not being tethered to a power source cannot be overstated, and for jobs where mobility is crucial, this grinder excels.

Overall, the Brushless Cordless Grinder from DeWalt is a formidable tool that combines power, safety, and convenience. The advanced features like the brake system, Kickback Brake, and E-CLUTCH® make it a safe choice for both professional and home use. The ergonomic design and build quality ensure it is comfortable to use and durable enough to withstand heavy use.

I would recommend this grinder to anyone needing a high-performance, cordless grinding solution. While the investment in Flexvolt batteries might be a consideration, the benefits of having a powerful, portable grinder that doesn’t compromise on performance are well worth it. For those who prioritize safety, power, and durability, the DeWalt DCG418B is a compelling choice.