The Magnepull wire-pulling tool is one of the coolest and most useful new products on the market these days, for building automation professionals, HVAC techs or anyone else who pulls wire. The old fish-tape method that has been used for years might be ancient history once the Magnepull gains popularity. It is perfect for pulling thermostat wire, coax cable, telephone wires, pretty much any kind of wire, through insulated or un-insulated sheetrock or metal stud walls. It can even be used to pull wire under carpeting. Seeing is believing; there was a huge crowd around the demonstration at the ASHRAE expo in January 2010. The most heard comment? "I gotta have one of those!"