Air conditioner installation requires a specific set of tools that most professional technicians in the Philippines carry as part of their standard kit, including a rotary hammer drill with a core bit for boring through walls, a pipe cutter and flaring tool for preparing the copper refrigerant lines, a manifold gauge set for checking refrigerant pressure, a vacuum pump for evacuating the refrigerant lines before charging, a torque wrench for securing fittings, a level for ensuring the indoor unit is mounted straight, and a multimeter for verifying electrical connections. Installers also use insulation tape, pipe clamps, wall anchors, and mounting brackets specific to the unit brand and model. The availability and quality of these tools are among the reasons why professional installation is strongly preferred over DIY attempts.