Final answer:
An example of an unsafe practice while setting up the drill press is failing to wear appropriate personal protective equipment (PPE).
Step-by-step explanation:
An unsafe practice while setting up the drill press is failing to wear appropriate personal protective equipment (PPE). PPE includes safety glasses, ear protection, and gloves. Without these, the worker is at risk of eye injuries from flying debris, hearing damage from the loud noise of the drill press, and hand injuries from sharp drill bits or moving parts.