Milwaukee 180mm Rafter Square

If you're a woodworking enthusiast or a professional carpenter, you know the value of having precise and reliable tools in your arsenal. One such tool that I've recently had the opportunity to work with is Milwaukee's 180mm metric rafter square, model MLSQ170. This compact yet robust tool has quickly become one of my go-to items for a variety of tasks.

First Impressions: Build Quality and Design

From the moment I held the Milwaukee rafter square, I could tell it was built to last. The tool is constructed from precision-machined, extruded aluminum, which gives it a solid, rugged feel without being overly heavy. Weighing in at just 0.481 lbs, it strikes a perfect balance between sturdiness and portability. The red anodized finish is not just for show; it provides a high contrast background for the laser-etched markings, making them exceptionally easy to read in various lighting conditions.

Usability: High Visibility Markings

One of the standout features of this rafter square is its high visibility markings. The white laser-etched graduations on the red background are incredibly clear, which is crucial when working on detailed projects. The markings include scribe notches spaced from 25mm to 145mm, enabling accurate lumber ripping with ease. Additionally, the 25mm cutout is designed to assist with pipe propping, although I found it more useful as a convenient finger hole for carrying the tool.

Precision and Accuracy

In terms of precision, this rafter square does not disappoint. The edges are machined, not cast, which ensures better accuracy. I performed several tests to verify its squareness, including the classic square test where you draw a line, flip the square, and draw another line over the first. The results were spot-on, with no noticeable deviation. The 90 and 45-degree surfaces are well-machined, although I did notice some variation in the smoothness of the machining marks. This minor inconsistency didn't affect the functionality in any noticeable way, but it's worth mentioning for those who are particular about such details.

Metric System: A Double-Edged Sword

The Milwaukee rafter square is exclusively metric, which can be both an advantage and a disadvantage depending on your needs. For those who prefer or are transitioning to the metric system, this tool is a godsend. The clear, metric markings make it easy to follow measurements and cuts without the hassle of conversions. However, if you're accustomed to imperial measurements, this tool may not be the best fit for you. It's essential to know what you're getting into before making a purchase.

Durability: Built to Last

Milwaukee is known for its durable tools, and this rafter square is no exception. The hard-coated anodized aluminum construction ensures that the graduations and lettering won't wear off, even with heavy use. The tool's compact size makes it easy to slip into a tool bag, reducing the risk of damage during transport. After several weeks of rigorous use, the square still looks and performs as well as it did on day one.

Versatility: More Than Just a Square

I found this rafter square to be incredibly versatile. Beyond its primary function of ensuring right angles, it works well as a straight edge and a guide for circular saw cuts. The scribe notches are particularly useful for making quick, parallel cuts along a board. While the 25mm cutout for pipe propping might seem like a novelty, I found it handy for aligning and measuring various materials, proving its utility beyond initial expectations.

Room for Improvement

No tool is perfect, and the Milwaukee rafter square does have a couple of areas where it could improve. Some users might find the machining marks on the surfaces a bit inconsistent, although this doesn't affect the tool's functionality. Additionally, there have been reports of the long side having a slight bow, which could affect its ability to sit flat. While it's possible to fix this with some DIY adjustments, it's not ideal for everyone. Lastly, it's worth noting that this tool is not magnetic, despite some listings claiming otherwise.

Conclusion: A Solid Recommendation

In conclusion, Milwaukee's 180mm metric rafter square is a high-quality, reliable tool that excels in precision, durability, and usability. Its clear, high-visibility markings and robust construction make it a valuable addition to any tool kit, especially for those who prefer the metric system. While it may not be perfect, its minor drawbacks are easily outweighed by its numerous benefits. If you're in the market for a new rafter square and are comfortable with metric measurements, I wholeheartedly recommend this tool. It offers excellent value for its price and is built to withstand the rigors of both professional and DIY use.

Whether you're a seasoned carpenter or a woodworking hobbyist, this rafter square is a worthy investment that will serve you well for years to come.