What is the role of safety devices, such as guards, in power tools?

The role of safety devices, such as guards, in power tools is primarily focused on ensuring user protection. These devices are designed to minimize the risk of accidents and injuries during the operation of tools. For instance, guards can prevent the operator's hands from coming into contact with dangerous moving parts, which could lead to severe injuries. The design of these safety features is crucial because they help create a safer working environment by mitigating hazards that could arise from mishandling or accidental contact.

While enhancing performance, increasing energy efficiency, and reducing noise levels are important aspects of tool design, they do not capture the primary function of safety devices. Safety devices are specifically engineered to prioritize the well-being of the user, making their role fundamental to the responsible use of power tools in various settings.