Air Compressors
Inside the unit, a pump compresses air and sends it to a tank, and a hose connects the tank to nailers, wrenches, and sprayers. Plenty of projects call for compressed air over a short stretch, and a rental covers the gap without a purchase.
The upkeep on a large unit does not stop when the work does, and renters skip that burden altogether. A search for Air Compressors usually comes from someone whose tools are already chosen, and the question left is which size and power source to pick.