What is the correct action to take when drilling a hole that is 1/2" or larger?

Drilling a pilot hole before drilling a larger hole is a critical safety and accuracy measure in pipefitting and general construction work. When beginning with a smaller pilot hole, it not only helps to guide the drill bit, ensuring precise placement and alignment, but it also reduces the risk of drill bit wandering. This is particularly important when working with materials that can chip or crack, as a pilot hole minimizes the stress on the surrounding area.

Additionally, starting with a pilot hole allows for reduced torque and better control during the drilling process. It helps in preventing the larger drill bit from binding or getting stuck, which can lead to potential injury or equipment damage. This practice is widely recognized in drilling and construction guidelines to enhance both safety and the quality of the work performed.

Marking the spot before drilling is indeed a beneficial practice, but it does not address the actual technical need for a pilot hole, and simply drilling without any preliminary steps can lead to inaccuracies and safety hazards. Using a larger drill bit first is not advisable either, as it bypasses the precision needed for starting a hole. By drilling a pilot hole first, you establish a solid foundation for your work, ensuring safety and effectiveness in your drilling operation.