A ballpeen hammer, also known as a ball pein hammer, is a versatile tool used for various applications. If you're looking for synonyms to describe this commonly used hammer, you can explore terms such as "machinist hammer", "engineer's hammer", or simply "peen hammer". These alternative names all refer to a hammer with a rounded head on one side, called a peen, and a flat face on the other. Some other terms often used interchangeably include "metalworker's hammer", "round-headed hammer", or even "smithing hammer". Regardless of the name, this essential tool is widely recognized for its ability to shape and bend metal, making it invaluable for a range of tasks in carpentry, metalwork, and DIY projects.