If you try to use the hammer drill safely there are many things you can do, but nothing is more important than just using your brain to assess your situation. If you spot the dangers in advance rather than after the problem was that you almost certainly will not have problems. You could end up as a serious risk of injury.
Security is absolutely essential in any environment, especially if you like a life-threatening and have a hammer drill. It is also imperative to understand what to do if the worst happened, and there was a serious problem. Use your hammer drill should not be that much risk. You should also remember that appropriate safety guards used. Many risks will depend on the type of material you are driving with a cordless rotary hammer. In general, should always be some security measures in place, the real equipment, rather than simply relying on its own security measures.
You are not able to completely eliminate all risks, so you will be easy to take a big risk, as you prefer. If you are not satisfied with something, stop and think about what you do. With patience, it will be a major accident prevention. There is nothing worse than having a serious accident, and knew that would be prevented, without premeditation, just a little patience.