Final answer:
A nail gun is a low-velocity fastening system used to drive steel pins or threaded studs into masonry and steel. It is a versatile tool commonly used in construction projects to save time and effort compared to manual hammering.
Step-by-step explanation:
The correct answer is 1) Nail gun. A nail gun is a low-velocity fastening system that is used to drive steel pins or threaded studs into masonry and steel. It is designed to provide efficient and precise fastening in construction and other applications.
A nail gun is a versatile tool that uses compressed air, electricity, or combustion to drive nails into different materials. It is commonly used in construction projects to save time and effort compared to manually hammering nails.
For example, when building a wooden frame for a house, a nail gun can quickly and accurately drive nails into the studs, beams, and other structural elements, ensuring a secure and sturdy construction.