Milwaukee SDS+ CORE 2-9/16"X2"

As a professional who frequently tackles masonry projects, I recently had the opportunity to test out Milwaukee's SDS+ Core 2-9/16" x 2" core bit (model number 48-20-5230). This tool is designed for drilling large holes in brick, block, and concrete using SDS-Plus rotary hammers. My aim was to see if it could live up to Milwaukee's reputation for high-quality tools.

Design and Build Quality

Right out of the box, the core bit feels robust. The asymmetrical carbide teeth are immediately noticeable and promise faster drilling speeds and improved material break-up. The core bit's two-piece design is another standout feature, allowing for versatility in drilling with various core bit sizes using just one adapter. This makes it a flexible addition to any masonry toolkit.

The spiral core body design is engineered to reduce friction and enhance dust removal, which is a critical factor when drilling into dense materials like concrete. The bit also includes a centering bit for easy spot drilling, which is especially useful for maintaining alignment and precision.

Performance

I first used the core bit to drill through an 8-inch house foundation. The bit performed admirably, cutting through the concrete with ease and showing no significant wear on the teeth after the job was completed. The key here is to let the bit do the work, applying minimal force. This approach not only preserves the bit's longevity but also results in cleaner, more precise holes.

However, when I attempted to drill through a 12-inch concrete foundation, the experience was less than ideal. The bit initially worked well, but upon hitting a rock within the concrete, one of the carbide teeth broke off. This was disappointing, as it compromised the bit's effectiveness and required me to finish the job with a different tool.

Usability

One of the most user-friendly aspects of this core bit is its centering bit, which helps in achieving precise spot drilling. However, I did encounter some issues with the pilot bit set screw loosening during use. Applying a thread lock on the set screw could potentially mitigate this problem.

The two-piece design is a double-edged sword. While it offers versatility, it also means that the core bit cannot be used straight out of the box without purchasing additional components like the adapter and centering bit. This is somewhat inconvenient and adds to the overall cost.

Durability

Durability is where this core bit falls short. Several instances of the internal threads stripping and the carbide teeth breaking off during use raise questions about the tool's long-term reliability. These issues significantly detract from the overall value, especially considering the premium price point.

In one instance, the internal threads stripped after just a couple of uses, rendering the bit unusable. This is a major flaw that Milwaukee needs to address, as it compromises the tool's longevity and overall performance.

Value for Money

Given the mixed performance and durability issues, the value for money is questionable. While the bit performs well under ideal conditions, its susceptibility to damage when encountering tougher materials like rock or rebar is a significant drawback. The additional cost of purchasing the necessary adapter and centering bit further diminishes its value.

Final Thoughts

Milwaukee's SDS+ Core 2-9/16" x 2" core bit offers a blend of innovative features and robust design, making it a valuable tool for certain masonry tasks. However, its durability issues and the need for additional purchases make it less than ideal for heavy-duty or professional use.

Would I Recommend This Tool?

If your projects primarily involve drilling through standard brick or concrete without encountering tougher materials, this core bit could serve you well. Its ease of use and efficient design make it suitable for light to moderate masonry work.

However, for more demanding tasks or professional use, I would hesitate to recommend this tool. The durability issues and additional costs make it less reliable and economical compared to other options on the market. In such cases, investing in a more durable and comprehensive solution might be a better choice.

In summary, while the Milwaukee SDS+ Core 2-9/16" x 2" core bit has its merits, it falls short in critical areas that matter most to professionals. For occasional use in less demanding conditions, it can be a useful addition to your toolkit. However, for those who require a reliable and durable tool for heavy-duty tasks, exploring other brands or models would be advisable.