Milwaukee Step Bit M6-M32 (32.5MM)

As someone who frequently works with various materials and needs to create a range of hole sizes, I was excited to try out Milwaukee's Step Bit M6-M32 (32.5MM). This step drill bit, part of Milwaukee's reputable line of tools, boasts several features designed to enhance both performance and durability. After putting it through its paces, I found a lot to appreciate about this tool, though it's not without its quirks.

First, let's talk about the design. The dual-flute construction is immediately noticeable and is one of the standout features of this step bit. This design allows for faster drilling while using less energy, making it ideal for both professional and DIY applications. I used the bit on various materials, including steel, aluminum, and plastic, and found that the dual flutes did an excellent job of clearing debris, which prevented the bit from seizing up during use. This is a significant improvement over single-flute designs I've used in the past, which often require more frequent stops to clear out material.

Another feature that deserves mention is the 3-flat secure grip shank. This design reduces the likelihood of the bit slipping in the chuck, which is a common issue with round shank bits. I used the step bit with both cordless and corded drills and found that the grip was consistently secure. This feature not only enhances safety but also ensures more precise drilling, as you don't have to worry about the bit shifting mid-operation.

The laser-engraved size markings are another thoughtful addition. These markings are located at the trailing edge of each step, making it easy to identify the size as you work. This is particularly useful when you need to switch between different hole sizes quickly. The engravings are clear and haven't worn off after several uses, which speaks to their durability.

One of the most impressive aspects of this step bit is its black oxide coating. This coating not only adds to the bit's longevity but also reduces heat buildup during drilling. I noticed that the bit remained relatively cool even when drilling through thicker steel sheets, which is often a challenge with other bits. This reduced heat generation not only extends the life of the bit but also results in cleaner, more precise holes.

However, it's worth noting that the bit's performance can vary depending on the material and the speed of the drill. For optimal results, it's crucial to adjust the drill's RPM based on the material you're working with. For instance, higher RPMs are more effective for smaller hole diameters and softer materials, while lower RPMs are better suited for larger diameters and harder materials. Unfortunately, Milwaukee doesn't provide a detailed RPM guide for different materials and hole sizes, which would be a helpful addition for users who want to get the most out of their step bit.

The bit's tip design also deserves praise. It's engineered for quick and accurate starts, which minimizes the "walking" effect that can occur when starting a hole. This is especially useful when working on harder materials like steel, where precise starting points are crucial. The tip also generates less heat, further contributing to the bit's longevity.

While the tool's performance is generally excellent, I did encounter a couple of issues. During one of my tests on a metal cabinet, the bit seemed to dull faster than expected. This could be due to the specific type of metal or the speed at which I was drilling, but it's something to be aware of. Additionally, the bit's performance in thicker materials wasn't always consistent. While it excelled in thinner sheets and plastics, it struggled a bit more with thicker steel, requiring more effort and time to complete the holes.

The carrying case that comes with the step bit is another highlight. It's rugged and compact, making it easy to transport the bit to various job sites. The case securely holds the bit in place, protecting it from damage and ensuring it's always easy to find. This is a small but significant feature, especially for those who need to keep their tools organized and readily accessible.

In conclusion, Milwaukee's Step Bit M6-M32 (32.5MM) is a robust and versatile tool that offers several advantages over traditional drill bits. Its dual-flute design, 3-flat secure grip shank, and black oxide coating contribute to its excellent performance and durability. The laser-engraved size markings and well-designed tip further enhance its usability, making it a valuable addition to any toolkit.

However, it's essential to use the bit correctly to get the most out of it. Adjusting the drill's RPM based on the material and hole size is crucial, and Milwaukee could improve user experience by providing a more detailed guide on this aspect. Despite a few minor issues, the bit's overall performance and the thoughtful design features make it a worthy investment.

I would recommend this step bit to both professionals and serious DIYers who need a reliable and efficient tool for drilling various hole sizes in different materials. Its durability, ease of use, and thoughtful design features make it a valuable addition to any toolkit. While it's not perfect, its strengths far outweigh its weaknesses, making it a tool that's likely to serve you well for many projects to come.