Rotary hammers can be used for "doweling" (repetitive drilling of large rebar anchor holes), and drilling through-holes in concrete and masonry walls. The hammering action helps break up the masonry so that it can be removed by the drill bit's flutes...
In addition to drilling holes in stone and concrete, a rotary hammer can also be used for chiselling work, such as removing tiles or even removing an entire wall. For this purpose, a chisel is inserted in the SDS holder of the chuck instead of a drill bit...