rotary hammer concrete drill bits
These hammering bits are specially designed for actually punching through concrete or other relatively hard materials. By combining a drill's rotation with the hammer action, these unique bits make it easier to get through what would otherwise be totally impenetrable solid stuff. They have a strong construction and usually some form of tungsten carbide tip to increase wear resistance. The body is fluted or grooved for ease in removing amassed materials. With their main function being to drill holes in concrete, brick and masonry, other technology-driven features such as vibration damping and heat-treated shanks help the user's comfort and prolong the life of the tool. They are suitable for a variety of uses from construction and remodeling to massive industrial work.