When preparing to drill, what must be done with the air supply before operation?

Before operating a drill, it is crucial to ensure that the air supply is properly managed to maintain safety and efficiency. The correct action is to check air pressure levels before beginning the drilling operation.

Checking air pressure levels helps verify that the tools operate within the manufacturer’s specifications, ensuring that they work effectively and reliably. Too low or too high air pressure can affect performance and could potentially lead to equipment damage or malfunction during drilling.

While it may seem efficient to leave the air supply attached or connect it after inserting the drill bit, doing so without checking the pressure first could lead to unsafe conditions or operational issues. Disconnecting the air supply might prevent the use of the tool entirely until set up properly, which is counterproductive. Therefore, checking the air pressure levels is a necessary step to create a safe working environment and ensure that the operation proceeds smoothly.