![]() The result is tools with increased durability and longer life. XPT (Extreme Protection Technology)Ī system of integrated seals designed to keep dust and water out of your tools. The result is less screw stripping and breaking, as well as less damage to your work. Quick shift modeĪ technology that is used in impact drivers to assist with precision fastening. The result is increased efficiency, longer run time, and lower noise. This technology reserves power for times when the tool is engaged in working. The result is a tool that can be used in low-noise environments. Utilizing an oil bath in the hammer-anvil mechanism, Makita has found a way to reduce the noise of impact drivers. Results in bits that last up to ten times longer. Technologies designed to help keep bits from breaking under the increased performance demands of contractor-quality tools. The result is less fatigue for the user and more power to the bit. This technology significantly reduces vibration in hand tools with a three-component system. AVT and Advanced AVTĪnti-vibration technology (AVT) is based on seismic engineering. The result is a consistently higher-performing drill. Automatic speed changeĭetects load and automatically adjusts the tool's speed and torque. The result is a battery that spends more time working and less time charging. Also, since rotary hammer drills are likely going to be used frequently, I made sure to only include trusted, well-known brands, and excluded any obscure options that, even though they’re a bit cheaper, just aren’t worth the risk of not being durable enough to do the job.BestReviews Home Improvement and DIY Expert Active 3 controlsĪ technology that enables chargers and batteries to exchange current, voltage, and temperature information during the charging process. Since different users will be using their drills for a range of applications, I did my best to include varying levels of power, with options that deliver 1 all the way up to 6.8 joules. I've used my personal experience using rotary hammer drills in the past-as well as extensive online research-to put together this list of the best options. On the other hand, corded drills offer unlimited running time, but they do require you to have an outlet nearby, and introduce power cords that can be frustrating to wrangle and add a tripping hazard to your job site. While cordless drills are convenient for their portability and lack of extension cord, you are limited by their battery runtime. Higher joules usually means a heavier drill though, so keep that in mind.Ĭordless versus corded power is something else to consider. The higher the joules, the more energy the drill will transfer into the workpiece, and the faster it will finish the job. The overall power of the rotary hammer drill is another factor to consider, and can be assessed by looking at their impact energy-which is measured in joules (J). Other models may have a drill-only mode that disengages the hammer mechanism, which is necessary for core drilling. This will allow you to use the drill with a chisel bit, which is essential for most demolition tasks. For example, although all our options will have a primary mode for hammer drilling, some will also have a hammer-only mode that does not rotate the bit. What to ConsiderĪlthough most rotary hammer drills look similar, there are features that make some more useful than others. They’re heavier and bulkier than standard hammer drills, but their added efficiency is usually worth the extra weight, completing tasks in seconds that would take lighter-duty drills several minutes. These drills use an air-powered piston to supplement their drilling mode-think of hitting the back of the drill with a hammer while you’re drilling-which creates a powerful impact per blow, and makes them extremely effective at heavy-duty tasks. While a standard hammer drill and a masonry bit can handle a few small concrete or masonry holes, you probably want to get a rotary hammer drill for larger and more intensive jobs.
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