Stanley Rotary Hammers

Rotary hammer: A drill that uses rotation and a hammering action that breaks up the concrete as the bit rotates. Rotary hammers are designed for day-in/day-out use. Demolition hammer: Heavy-duty tool designed to chip or break up concrete.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.