4 Pics 1 Word Level 775

Answer:
Drill
Hint
What is the answer to the 4 Pics 1 Word level with A person screwing in a door, Military personnel marching, People doing construction on the street, and Two people with Dentist utencils?

Hint
What is the answer to the 4 Pics 1 Word level with A person screwing in a door, Military personnel marching, People doing construction on the street, and Two people with Dentist utencils?