E N D
Masonry drill bits are made for drilling in stone, block or concrete (Wikipedia)
But the best masonry drill bits designed for use with a hammer drill
It hammers the bit into the material as it rotates, it breaks up the material carry away the dust
SDS shank allows the bit to slide within the chuck when hammering
The tungsten carbide tips of the masonry bits are robust, reliable and long lasting
Masonry bits up to 40 in long can be used with hand-portable power tools
How to choose the Best masonry drill bits(read more on bestdrillbit.com)