What tool lends it's name to a last-stone advantage in an end in Curling?

The tool that lends its name to a "Hammer" advantage in an end in curling is called a hammer. In curling, the team with the hammer has the last stone advantage, meaning they get to throw the final stone of the end. This is a significant advantage as it allows the team to potentially score more points or strategically manipulate the game by controlling the final shot. Therefore, the tool that is associated with this advantage is called a hammer.