Final answer:
The purpose of a machine guard on a tool is to protect the worker from rotating parts.
Step-by-step explanation:
The purpose of a machine guard on a tool is to protect the worker from rotating parts.
A machine guard is a safety device that is installed on machinery to prevent worker injury. These guards are typically used on tools with rotating or moving parts, such as drills, saws, or lathe machines. They act as a physical barrier, preventing the worker from coming into contact with the hazardous components of the machine. For example, a machine guard on a drill press would cover the spinning drill bit, reducing the risk of the worker accidentally getting their fingers caught in it.
By protecting the worker from rotating parts, the machine guard helps to minimize the risk of accidents, including amputations, lacerations, and crush injuries. It is an essential safety measure that ensures the well-being of workers in industrial settings.