Bit choice should follow the material, because wood, metal, tile, and masonry all respond differently to heat, pressure, cutting edge shape, and drilling speed.
Finding a stud reliably means combining a stud finder with layout logic, outlet clues, and small confirmation checks instead of trusting one electronic beep.
Pilot holes matter most in harder wood, edge-fastening, and precise hardware placement, while soft material and small screws sometimes allow a direct drive without trouble.
Before drilling into drywall, the key checks are wall type, possible stud location, hidden services, mount weight, and whether the chosen anchor system matches the job.
Clean tile drilling depends on the right bit, slower starts, and controlled pressure because tile punishes wandering and sudden force more than softer wall surfaces do.