What is the best way to use a 3/4 concrete drill bit for drilling into tough surfaces?

The best way to use a 3/4 concrete drill bit for drilling into tough surfaces is to start drilling at a slow speed and gradually increase the speed as needed. Make sure to use a hammer drill for added power and stability, and apply steady pressure while drilling to prevent the bit from getting stuck. Additionally, periodically stop drilling to clear out any debris and keep the bit cool to prevent overheating.