Drill bits that can drill through concrete are called masonry bits. They are also good for drilling through brick and stone.
These Drill bits comes with a tungsten carbide tip which are the strongest, when it comes to solid concrete, the sharper the better. Masonry bits cut holes through concrete in two steps.
Product description
5PC Hss Drill Bit: HSS bits is High-speed steel bits which are hard and much more resistant to heat than high-carbon steel. They can be used to drill metal, hardwood, and most other materials at greater cutting speeds than carbon-steel bits, and have largely replaced carbon steels.
