Answer :
Final answer:
The correct answer is the powder-actuated tool, which is designed for low-velocity fastening into masonry. Other options are either unsuitable for this purpose or designed for different tasks. This tool uses small cartridges to drive fasteners efficiently.
Explanation:
Understanding Low-Velocity Fastening Systems
In construction and masonry work, a low-velocity fastening system is crucial for effectively driving materials such as steel pins or threaded studs into hard surfaces like concrete or brick. The options provided include:
- Mini hammer drill: Typically used for drilling holes rather than fastening.
- Pneumatic screw nailer: Functions with air pressure but is more suited for driving screws
- Air impact wrench: Primarily used for loosening or tightening fasteners.
- Powder-actuated tool: This system uses small cartridges to propel fasteners into hard materials; it is specially designed for tasks that involve driving into masonry.
The correct tool in this context is the powder-actuated tool, as it is explicitly designed for low-velocity fastening, providing sufficient force to embed pins or studs into tough substrates without damaging them.
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