Milwaukee 13/32 in. Titanium SHOCKWAVE

Selecting the right drill bit can often make or break a project. Recently, I had the opportunity to put the Milwaukee 13/32 in. Titanium SHOCKWAVE drill bit (model 48-89-4623) to the test, and I came away with some strong impressions about its capabilities and limitations.

First and foremost, the standout feature of this drill bit is its titanium coating. Milwaukee promises a 5x life span compared to standard black oxide drill bits, and in many instances, this claim holds true. The titanium coating significantly enhances durability and reduces heat buildup, which is crucial for maintaining the bit's sharpness over time. However, it's essential to understand that this coating will eventually wear off. Once that happens, you're left with a standard high-speed steel (HSS) bit. This isn't necessarily a dealbreaker, but it's a reminder that these bits are best suited for softer materials if you want them to last.

When I used the SHOCKWAVE bits on wood and plastics, they performed admirably. The 135° split point tip prevents walking, ensuring precise starts without the need for a pilot hole. The bits cut smoothly and efficiently, producing smaller chips and allowing for rapid chip removal, thanks to the variable helix design. This also helps in keeping the bit cool, which is a significant factor in their longevity. In these materials, the bits maintained their sharp edge for a commendably long time.

However, the experience isn't as positive when it comes to drilling metal. Despite the titanium coating, these bits struggled with harder materials. During my tests, I found that they dulled quickly and occasionally even broke at the hex shank. This was particularly evident when using them in an impact driver, which applies considerable torque. For metalworking tasks, I would strongly recommend opting for cobalt drill bits instead. Cobalt bits are designed to handle the stress and heat generated when drilling through tougher materials, making them a more reliable choice for metal applications.

Another area where the SHOCKWAVE bits shine is their compatibility with both drills and impact drivers, thanks to the 1/4 in. hex shank. This feature adds a layer of versatility, allowing for quick changes and reducing downtime. This is particularly useful in situations where you need to switch between drilling and driving tasks frequently.

The quad edge tip and chip breaker features also add to the bit's efficiency, although these benefits are more noticeable in softer materials. These design elements help reduce the bit's tendency to wander and ensure cleaner holes, which can be a game-changer when precision is paramount.

While the bits themselves performed well in many scenarios, the same can't be said for the case they come in. The case design leaves much to be desired. The latch feels flimsy and doesn't inspire confidence in its durability over time. Moreover, extracting the bits from the case can be a frustrating and even painful experience. The slots are tight and close together, making it difficult to remove bits without risking a cut on adjacent ones. This design flaw is particularly problematic in a professional setting where efficiency and safety are crucial. I found that wearing gloves helped mitigate some of this risk, but it shouldn't be necessary to take such precautions for something as straightforward as retrieving a drill bit.

Given these observations, the Milwaukee SHOCKWAVE bits are best suited for DIY enthusiasts and professionals who primarily work with wood, plastics, and other softer materials. For these applications, the bits deliver excellent performance and durability. However, if your projects frequently involve metal, you'll likely find yourself disappointed with these bits and should consider alternatives better suited for that purpose.

Overall, I would cautiously recommend the Milwaukee 13/32 in. Titanium SHOCKWAVE drill bit. Its performance in softer materials is noteworthy, and the design features like the 135° split point tip and variable helix contribute to its efficiency and precision. However, the limitations in metalworking and the poorly designed case are significant downsides that potential buyers should consider. If your work predominantly involves softer materials and you can overlook the case issues, these bits could be a valuable addition to your toolkit. Otherwise, you might be better served by exploring other options tailored to your specific needs.