Power Tool Safety Basics

Power tools can be electric (corded or battery), pneumatic, hydraulic, gas-powered or powder-actuated. Whatever the power source, the same core rules apply.

• Construction
• General Industry

Before you use any power tool

• You’ve been trained on this tool and read the manual
• Guards are in place and working; never removed or wedged open
• Switch works and turns the tool off; trigger locks are not taped down
• Cord and plug not damaged; ground pin present; tool is double-insulated or grounded
• Plugged into a GFCI-protected outlet or cord on construction sites. See GFCI Protection.
• Blade, bit or wheel is the right type, sharp, rated for the tool’s speed, and installed tightly
• Work is clamped or secured, leaving both hands free
• PPE is on: safety glasses at a minimum, plus face shield, hearing protection, gloves or respirator as needed

The universal rules

• Disconnect the tool (unplug, remove the battery, or shut off the air) before changing blades, bits or accessories, and when not in use.
• Keep good footing and balance. Don’t overreach.
• Keep cords and hoses away from heat, oil, sharp edges and the cutting path.
• Keep observers at a safe distance.
• Tie back long hair and avoid loose clothing, jewelry and dangling hoodie strings.
• Remove damaged tools from service and tag them “Do Not Use.”

• Don’t carry a tool by its cord or hose, or yank the cord to unplug it.
• Don’t keep your finger on the trigger while carrying a plugged-in tool.
• Don’t use electric tools in wet conditions unless they’re approved for it and GFCI-protected.
• Don’t use tools in flammable atmospheres unless they’re rated for it.

Last updated: October 1, 2026