What is the function of a drift punch?

• A. To mark hole locations accurately
• B. To finish driving out bolts, pins, or rivets from a hole
• C. To create arcs and circles on metal
• D. To measure angles

Answer: (B)

The function of a drift punch is specifically designed for finishing the task of driving out bolts, pins, or rivets from a hole. This tool features a tapered end that allows it to fit into holes and provides the necessary impact force to help remove stubborn fasteners without damaging the surrounding material. In aviation maintenance, where precision is crucial, the drift punch becomes an essential tool for ensuring that components can be disassembled effectively, allowing for repairs and inspections to be made.

Other options entail functions that are not aligned with the primary purpose of a drift punch. For example, marking hole locations accurately pertains to the use of a different tool, often a center punch, which is specifically designed for that purpose. Creating arcs and circles refers to tools like compasses or scribing tools, which are meant for specific marking tasks on materials. Measuring angles is typically done with tools such as protractors or angle finders, which serve a distinct purpose in ensuring correct alignment and precision during assembly. The drift punch, therefore, has a well-defined and specialized role that is critical in the assembly and disassembly of aircraft structures.