What type of hammer has one flat face and one rounded end?

A hammer with one flat face and one rounded end is known as a ball peen hammer. The flat face is typically used for striking and shaping metal, while the rounded end, often referred to as the peen, is designed for shaping or rounding off edges of metal. The unique design allows for versatility in metalworking tasks, making the ball peen hammer a favored tool among blacksmiths, machinists, and metal fabricators. The structure enables the user to apply different types of force and shape materials effectively, which is essential in precision work.

Other types of hammers, such as dead blow hammers, rawhide hammers, and pry bars, serve different purposes and have distinct designs that do not fit this description. A dead blow hammer, for example, is designed to minimize rebound during impact, while a rawhide hammer is used to strike surfaces without marring them. A pry bar, on the other hand, is not a hammer at all, but a tool used for prying, pulling, or moving objects. Thus, the characteristics of a ball peen hammer specifically align with the provided details of having one flat face and one rounded end.