Milwaukee Hole Dozer Bi-Metal Hole Saw

In the realm of hole saws, the Milwaukee Hole Dozer Bi-Metal Hole Saw stands out as a formidable contender, especially for those who demand versatility and durability. I had the opportunity to put this tool through its paces across various materials, and the experience was quite revealing.

First impressions of the Hole Dozer are positive. Out of the package, it feels robust and well-constructed. The bi-metal design, which combines high-speed steel and a flexible alloy, promises both durability and resilience. The 3.5 TPI (teeth per inch) tooth design is intended to enhance its lifespan, particularly in metal applications. This feature, coupled with Milwaukee's thermoset coating to reduce friction, aims to deliver a smooth and efficient cutting experience.

Using the Hole Dozer on wood was where it truly shined. With a 2-1/2 inch diameter, it effortlessly sliced through 3/4 inch hardwood plywood and pine, maintaining clean, precise cuts. One of the standout features is the generous cut-outs, or "Plug Jack" slots, which facilitate easy removal of debris post-cut. This design element significantly reduces downtime during projects, as clearing out the cut material is straightforward and doesn't require additional tools.

For those working with various materials, this hole saw proves versatile. It performed admirably on plastic, consistently achieving clean cuts without the excessive chipping that can plague other brands. The stability and sharpness of the teeth provided smooth entry and exit points, which is particularly valuable when the aesthetic of the cut edge matters.

However, the performance in metal cutting is a mixed bag. While the Hole Dozer can handle mild steel and aluminum reasonably well, it struggles with more demanding metal applications. During my testing, I found that the saw dulled relatively quickly when cutting through thicker steel, even with proper lubrication and low RPMs. This suggests that while it can be a handy tool for occasional metalwork, it may not be the best choice for heavy-duty or frequent metal cutting tasks.

One of the drawbacks I encountered was the tendency of the saw to unscrew from the arbor during use. This issue arose particularly when the drill stopped abruptly, causing the saw to come loose due to the momentum. It’s a minor inconvenience but something to watch out for to ensure safety and efficiency during operation.

Another point of contention is the packaging. The Hole Dozer comes encased in extremely tough plastic, which was a challenge to open. While this ensures the tool remains secure during transport, it could pose a risk of injury when trying to access the tool. A more user-friendly packaging design would be a welcome improvement.

Despite these issues, the tool’s craftsmanship cannot be overlooked. The hex shank requires at least a 3/8 inch drill, which is expected given the saw’s size and the need for a sturdy grip. The replaceable and adjustable mandrel drill bit is a thoughtful feature, allowing for easy maintenance and extended tool life.

In practical applications, such as creating holes for PVC pipes or electrical connections in cabinetry, the Hole Dozer excelled. The precision of the cuts and the ease of maintaining the drill’s alignment were notable advantages. Its ability to handle various materials means it can be a valuable addition to any workshop, provided its limitations in metalwork are acknowledged.

Overall, the Milwaukee Hole Dozer Bi-Metal Hole Saw is a robust and versatile tool, particularly well-suited for wood and plastic applications. Its durability and thoughtful design features, like the Plug Jack slots and replaceable mandrel bit, enhance its usability and efficiency.

Would I recommend the Milwaukee Hole Dozer? The answer is a qualified yes. For those primarily working with wood, plastic, or light metals, this hole saw will likely meet or exceed expectations. Its durability, ease of debris removal, and precision make it a solid choice for diverse projects. However, if your work frequently involves cutting through thicker or harder metals, you might want to consider a more specialized tool designed specifically for those materials. The Hole Dozer is a dependable companion for a wide range of tasks, but understanding its strengths and limitations will ensure it serves you well.