Milwaukee Cordless 4-1/2" Cut-off / Grinder

The Milwaukee Cordless 4-1/2" Cut-off / Grinder, model 2680-20, has been a remarkable addition to my toolbox. As someone who frequently engages in metalworking and DIY home improvement projects, I found myself in need of a reliable grinder that could handle a variety of tasks from cutting rebar to grinding welds. Given my positive experiences with other Milwaukee tools, I decided to give this cordless grinder a try.

Right out of the box, the setup was straightforward. The side handle was detached, but it was a simple matter of screwing it in. The handle can be positioned on either side of the grinder, making it versatile for both right-handed and left-handed users. The guard was also easy to attach and adjust, thanks to its tool-free, burst-resistant design. This intuitive setup had me ready to tackle my first project in no time.

One of the standout features of this grinder is its 4-pole motor, which delivers ample power for both cutting and grinding tasks. I initially used it to cut through some half-inch rebar, and I was impressed by how smoothly and efficiently it performed. The grinder made quick work of the rebar, which was a significant improvement over my previous method of using a reciprocating saw. The power delivered by the motor was consistent and reliable, making even the more demanding tasks feel manageable.

The paddle switch design is another feature that enhances the user experience. It's easy to operate and provides a comfortable grip, reducing hand fatigue during extended use. The placement of the switch also allows for better control, which is particularly useful when working in awkward positions or tight spaces. The three-position side handle further adds to the versatility, allowing for optimal control and stability during different types of tasks.

One of the aspects that makes this grinder particularly appealing is its portability. Being cordless, it offers the freedom to move around without being tethered to an outlet. This has been a game-changer for my outdoor projects and for working in areas where power sources are not readily available. The grinder is powered by Milwaukee's M18 battery system, which is compatible with other M18 tools I own, making it convenient to swap batteries between tools.

However, it's worth noting that the grinder does not come with a battery or charger, which might be a drawback for those who do not already own other Milwaukee M18 tools. Additionally, while the grinder performs exceptionally well for light to medium-duty tasks, it does have its limitations. When I tried to apply more pressure for heavier grinding, the tool tended to stall. This can be somewhat mitigated by letting the wheel do the work rather than leaning into it, but for those who frequently engage in heavy-duty tasks, the Fuel version might be a better option.

The L-shape intake vents are a thoughtful design element, helping to keep debris out and prolonging the life of the tool. This feature has proven beneficial in maintaining the grinder's performance over time, especially when working in dusty or dirty environments.

Despite its many strengths, the grinder does have a few areas where it could improve. One notable absence is the quick-stop braking action, which would be a useful safety feature. The blade continues to spin for a few seconds after the power is turned off, which requires extra caution during use. Additionally, while the grinder is relatively compact, it can feel a bit clumsy in very tight spaces due to its safety handle.

Battery life is another consideration. While the tool's performance is impressive, it does consume battery power fairly quickly, especially during intensive tasks. This necessitates having spare batteries on hand to avoid interruptions. On the bright side, the tool's power and efficiency remain consistent throughout its battery life, ensuring that tasks can be completed effectively.

In terms of durability, the Milwaukee Cordless 4-1/2" Cut-off / Grinder lives up to the brand's reputation. The build quality is robust, and the materials used are of high standard, ensuring that the tool can withstand the rigors of regular use. The ergonomic design also contributes to its durability by reducing user fatigue and promoting better handling.

Overall, the Milwaukee Cordless 4-1/2" Cut-off / Grinder is a powerful and versatile tool that excels in a variety of applications. Its combination of power, portability, and user-friendly features makes it a valuable addition to any toolbox. While it may have some limitations for heavy-duty tasks, it performs exceptionally well for light to medium-duty grinding and cutting.

I would recommend this tool to both DIY enthusiasts and professionals who need a reliable, cordless grinder for a range of applications. Its ease of use, combined with the freedom from cords, makes it particularly suitable for those who value mobility and convenience in their tools. If you're already invested in Milwaukee's M18 battery system, this grinder is a no-brainer. For those new to the brand, it offers a compelling entry point into Milwaukee's ecosystem of high-quality tools.