Which is a common safety measure when using power tools?

A common safety measure when using power tools is wearing safety glasses, as they protect the eyes from debris and flying objects that could cause injury. Additionally, using gloves can help prevent cuts and abrasions while providing a better grip on the tool, enhancing control during operation.

Combining these two practices—wearing safety glasses and using gloves—significantly increases safety by addressing multiple types of risks. Using earplugs, while important in certain contexts to protect hearing, does not provide comprehensive protection against the various other hazards associated with power tool use. Therefore, the most comprehensive answer is the choice that encompasses both wearing safety glasses and using gloves.