Final answer:
Always retract or secure the utility knife blade after extending it to ensure safety and prevent injury. Use protective gear and follow safety procedures around machines.
Step-by-step explanation:
When operating any type of utility knife, always practice safety procedures after extending the blade. Once you have pushed the utility knife blade out, always retract the blade to its safety position when not actively in use, or ensure it is secured while working to prevent accidental injury. Utility knives are sharp and can cause serious harm if not handled with care.
The procedure described seems to be related to an industrial operation. Consequently, remembering to follow safety protocols around utilities and machines, such as wearing protective gear and reporting any unsafe conditions, is essential. Moreover, stay alert and be conscious of your surroundings, especially if working around machinery that involves moving parts or chemicals.