Final answer:
A machinist's hammer is also known as a ball hammer or engineer's hammer, featuring a flat and a rounded end for diverse metalworking tasks.
Step-by-step explanation:
Another name for a machinist's hammer is often referred to as a ball hammer or engineer's hammer. This type of hammer is distinct because it has two ends: one flat, also known as the peeen, and the other, called the ball, is rounded. It's a versatile tool commonly used by machinists and engineers for various tasks, including shaping metal, setting rivets, and driving punches and chisels.
The ball peeen side of the hammer is specifically designed for peeening, which is a technique used to work-hardening material. When compared to a standard claw hammer, the flat face of a machinist's hammer is typically smaller, and the overall design is more robust to withstand the high-impact jobs it is meant to perform.