Which tool is used for driving out metal pins?

The tool specifically designed for driving out metal pins is the pin punch. A pin punch is typically a narrow tool that features a blunt end designed to fit into the hole of the pin, providing a precise point of contact. When a pin punch is struck with a hammer, it pushes the pin out of its position without damaging the surrounding material or the pin itself. The design allows for effective transfer of force directly to the pin, making it the ideal tool for this task.

In contrast, while other tools like the cold chisel, drill punch, and centre punch have their own specific uses, they are not suitable for the task of driving out pins. The cold chisel is mainly used for cutting metal by chipping away material, the drill punch is used for creating holes, and the centre punch is employed for marking the center of a point to be drilled. Each of these tools serves a different purpose and is designed for distinct functions in metalworking and machining.