When changing a drill bit or a saw blade in a portable electric tool you should always do this first

When changing a drill bit or a saw blade in a portable electric tool you should always do this first

• A. Unplug the tool from the outlet or source
• B. Tighten the chuck
• C. Wear gloves
• D. Check the blade for wear

Answer: (A)

The safety move when changing a drill bit or saw blade is to de-energize the tool first. Unplugging the tool from the outlet (or removing the battery on a cordless model) ensures there’s no electrical energy that could start the motor while your hands are near the rotating chuck or blade. This eliminates the biggest risk of serious injury from an unexpected start. Once power is disconnected, you can safely loosen the chuck, replace the bit or blade, and then tighten as needed. While other steps like tightening the chuck or inspecting the blade matter, they should come after confirming there is no power.

The safety move when changing a drill bit or saw blade is to de-energize the tool first. Unplugging the tool from the outlet (or removing the battery on a cordless model) ensures there’s no electrical energy that could start the motor while your hands are near the rotating chuck or blade. This eliminates the biggest risk of serious injury from an unexpected start. Once power is disconnected, you can safely loosen the chuck, replace the bit or blade, and then tighten as needed. While other steps like tightening the chuck or inspecting the blade matter, they should come after confirming there is no power.