A sledgehammer is a heavy tool used for breaking or demolishing hard materials such as concrete, rocks, and masonry. It can also be used for driving fence posts and stakes into the ground.
its a large hammer with a metal mallet like head. their handles are long designed to be held with both hands, ot used to designed for breaking stone and demolition work.
It is use for demolition jobs where high force is required. It has metal Head attached to a long wooden handle . The length of the handle allow the tool to gain momentum while swinging.