The AIR-SPADE patented supersonic nozzle turns compressed air into a high speed, laser-like jet moving at twice the speed of sound, Mach 2. All of the energy and momentum of this air moving at approximately 1200 mph is focused onto the soil dislodging it in a fraction of a second.Used primarily in the Arborist and Utility Industies, the Air-spade leaves, tree roots and underground gas and utility lines unharmed.
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