Drill Tests Put Tools to the Test

Pro Tool Reviews outlines its approach to evaluating cordless drills through a mix of controlled tests and practical applications. The process begins with RSS screws, which are preferred over lag screws for their smaller size and structural strength. Tests compare drills and impact drivers, revealing that drills often outpace impact drivers in speed. In 2026 tests, every Pro-grade drill tested was more than twice as fast as the fastest impact driver. This highlights the importance of selecting the right tool for specific tasks.

Testing begins with OSB subfloor boards glued together to create a consistent material. A 1 1/2-inch pilot hole is drilled to ensure screws go straight. While OSB isn’t typical in construction, its predictability and glued layers make it ideal for testing. The drill is set to high speed, and the battery is fully charged. Timing starts when the trigger is pulled and ends when the screw head is flush with the top board. Downforce is minimal to ensure the drill does most of the work. Video footage captures times to the 1/100th of a second, with averages taken from three successful runs.

Spade bits, used for rough-in jobs, present a medium-load test. A 1-inch self-feeding bit is used to maintain consistency. The same glued OSB material is tested, but stacked to 4 inches thick. The drill starts at high speed, and if it fails to complete the task, it’s shifted to a lower gear. Results are averaged from three runs, with outliers discarded. This method ensures reliability while simulating real-world conditions.

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A 2 9/16-inch self-feed bit is tested on 2×4 pine studs, common in plumbing rough-ins. Unlike OSB, studs vary in density, but early tests found better consistency with them. Knots or density changes are monitored, and outliers are retested. The drill starts with a full charge, and the average time from trigger pull to breakthrough is reported. This test emphasizes durability under challenging conditions.

Hammer drills are tested on concrete, poured to 4000 PSI and allowed to cure for 28 days. A 3/8-inch carbide-tipped bit is used, with an electrical tape flag marking the 3-inch depth. Drilling straight down is critical, and any angled starts are redone. Results are averaged from three runs, with outliers removed. Manufacturers typically limit concrete bits to 3/8-inch, so testing sticks to that size to respect design intent.

Lighter-duty drills are tested with scaled-down methods, using smaller bits and skipping self-feed tests. Results are only reported when compared to other drills in the same class. This ensures context and avoids misleading data. Beyond performance, weight, handle shape, and grip comfort are evaluated. These factors influence user experience but are harder to quantify.

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Each test is designed to mirror real-world scenarios, balancing practicality with measurable outcomes. For example, RSS screw tests reflect structural work, while spade bits mimic rough-in tasks. The use of glued OSB and standardized concrete ensures consistency, even if materials differ from typical job sites. By focusing on specific metrics—speed, consistency, and durability—the tests aim to highlight tools’ strengths and limitations.

Pro Tool Reviews emphasizes transparency in its process. If a drill struggles in a test, it’s noted without exaggeration. Results are averaged to smooth out variability, but outliers are addressed through retesting. This approach avoids overemphasizing single data points while ensuring reliability. The goal is to provide a clear picture of how drills perform under controlled and practical conditions.