The Way to the Rotary Hammer
A normal cordless screwdriver or cordless drill frequently reaches its limits when drilling in concrete, since these devices are also not aligned with the material. With a cordless rotary hammer or an impact drill one is already much better positioned. Smaller holes pose no problem for these tools and the concrete is perforated in an instant. What differences exist between the tools rotary hammer and impact drill, or which product is suitable for which purpose, you will learn in our separate blog post on this topic.
If a larger hole in the concrete is required, the bore can often be extremely exhausting even with an impact drill. The need for a machine that is even more powerful and allows for large boreholes to be created, as well as takes most of the work off, is revealed. You then come across the all‐purpose weapon, which concerns the drilling and steming in concrete and stone walls, the corded rotary hammer.
When choosing the right rotary hammer, the old rule applies, performance is only replaceable by even more performance! The power of the respective drilling machine can be easily identified by the specified impact force in Joule. Incidentally, a joule equals the power needed to lift a bar of chocolate one meter! Of course, it is advisable not to lose sight of the task here. A demolition hammer for hanging up family photos would be a little over the top. The tool or the drilling machine should therefore be tailored to the appropriate materials.
In contrast to the impact drill, the rotary hammer has a pneumatic percussion mechanism which acts directly on the drill chuck and thus on the drill bit in the direction of the drill hole. This minimizes the effort required to drill in stone and concrete by aligning the tool to the correct position. Due to the blows in the direction of the drill, the rotary hammer literally pulls itself into the wall by itself.
If the material in which a hole is to be drilled is, by way of exception, not made of concrete but, for example, of plasterboard, soft stone or even tiles, then the striking mechanism on the machine can be deactivated with the push of a button. This is how the rotary hammer turns into a powerful drilling machine for everyday use in no time at all.