Milwaukee SHOCKWAVE Impact Duty Step Bit #9 7/8 - 1-1/8

Milwaukee's SHOCKWAVE Impact Duty Step Bit #9 7/8 - 1-1/8 is a tool that stands out in a crowded market for step drill bits. With Milwaukee's reputation for quality and innovation, I was eager to put this step bit to the test in various scenarios to see if it lived up to the brand's high standards.

First, let's talk about the construction of the bit. It boasts a Titanium Aluminum Nitride (TiAlN) coating, which is intended to extend its lifespan. This coating is known for its heat resistance and hardness, which theoretically should make the bit more durable and efficient. Additionally, the bit features a dual spiral flute design, which promises faster drilling by removing chips more efficiently. The hex shank is another notable feature, designed to enhance durability and reduce the risk of shank breaks—a common issue with cheaper step bits.

I started my testing on 1/8" steel, a common material where step bits are frequently used. The Rapid Strike Tip made for quick, easy starts, and the dual cutting flutes indeed seemed to make the drilling process faster. I was impressed by how smoothly the bit transitioned from one step to the next, with minimal grabbing or vibrations. This smooth operation is likely due to the SHOCKZONE design, which aims to reduce breakage and extend the bit's life.

One of the standout features is the laser-engraved size markings. These markings made it easy to identify the sizes while drilling, a significant improvement over bits with painted markings that can wear off quickly. However, it's worth noting that the markings are only present for the 7/8" and 1-1/8" steps. While these are the most critical sizes, having additional markings for the intermediate steps would have been beneficial, especially for tasks requiring precise measurements.

The bit performed admirably in thinner materials, but I encountered limitations when drilling through thicker steel plates. While the bit cut through the first plate without any issues, it struggled and eventually dulled when I attempted to drill through multiple plates of 3/16" steel. This aligns with the bit's maximum recommended material thickness of 1/8". It's a crucial detail that potential buyers should be aware of, as exceeding this thickness can lead to rapid wear and reduced effectiveness.

I also tested the bit on various other materials, including PVC and wood. The bit handled these materials exceptionally well, making quick work of drilling tasks without overheating or showing signs of wear. This versatility makes the bit a valuable addition to any toolbox, particularly for those who work with a variety of materials.

Using the bit with both an impact driver and a regular drill provided some interesting insights. While the bit is optimized for impact drivers, I found it to work just as effectively with a standard drill. The impact driver did seem to drill holes slightly faster, especially for larger sizes, but the regular drill provided more control and less risk of the bit grabbing or causing vibrations.

The SHOCKWAVE Impact Duty Step Bit is undoubtedly a high-quality tool, but it comes with a premium price tag. Given its performance and durability, I believe the cost is justified, especially for professionals who require reliable and long-lasting tools. However, for occasional DIY users or those working exclusively with thinner materials, this bit might be overkill, and more affordable options could suffice.

In terms of durability, the bit held up well during my testing. After drilling numerous holes in various materials, the cutting edges remained sharp, and the bit showed no signs of overheating or significant wear. This durability is a testament to the quality of the TiAlN coating and the overall craftsmanship of the bit.

While the bit performed well overall, there are a few areas where it could be improved. As mentioned earlier, additional size markings would enhance usability, especially for precision tasks. Additionally, the bit's performance in thicker materials is limited, which is something potential buyers should consider based on their specific needs.

In conclusion, the SHOCKWAVE Impact Duty Step Bit #9 7/8 - 1-1/8 by Milwaukee is a robust and versatile tool designed for both impact drivers and drills. Its TiAlN coating, dual spiral flute design, and SHOCKZONE technology contribute to its durability and efficiency. While it excels in drilling through thinner materials and offers excellent edge retention, its performance in thicker materials is somewhat limited. For professionals and serious DIY enthusiasts who require a reliable step bit for various tasks, this tool is a worthwhile investment. However, for those working predominantly with thin materials or on a budget, there are more economical options that may better suit their needs. Overall, I would recommend this step bit for its quality, durability, and versatility in handling a range of materials.