The PowerFast outward clinch staple gun was developed to fasten insulation wrap around ductwork and pipes in heating and cooling applications. It also can be used to fasten insulation used for metal supply trunks as well as fiberglass duct board. Features include a bottom-load magazine, a staple reload window and a locking handle. The gun uses galvanized or copper staples in 1/2- and 9/16-inch sizes.
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