Which nozzle type is typically used to create a hole in an automobile's sheet metal?

The piercing nozzle is specifically designed to create holes in solid surfaces, such as the sheet metal of an automobile. Its narrow, focused jet is capable of penetrating through materials, making it ideal for accessing the interior of a vehicle, particularly in situations where conventional entry methods may be difficult or unsafe due to the fire or accident conditions.

This nozzle type allows firefighters to effectively apply water or foam into the car’s interior to suppress any flames while minimizing exposure to combustion products. Its unique design contrasts with other nozzle types, as options like the fog nozzle and straight stream nozzle are intended for general fire suppression and are not effective in piercing through metal. The adjustable nozzle provides versatility in stream patterns but also does not have the targeted penetration capability necessary for creating a hole in sheet metal. Thus, the piercing nozzle stands out as the most suitable choice for this specific application.