Staple Gun

A staple gun, also called a powered stapler or trigger tacker, is a hand held tool that drives heavy metal staples into wood, plastic or masonry, used for tasks ranging from securing insulation and roofing material to fastening upholstery and craft supplies. Staple guns come in three main kinds: manual models powered by hand compression, electric versions run from a cord or battery, and pneumatic guns driven by compressed air, with powered versions working faster and tiring the user less than a hand operated model. The forward action design, with the handle pointing toward the trigger rather than away from it, appeared around 1934 and made the tool easier to use by concentrating pressure where the staples are driven out. Unlike an ordinary office stapler, many staple guns have no anvil, the curved metal plate that normally bends a staple's legs closed; instead the tool relies on the inertia of the workpiece itself to substitute for the missing anvil, letting it drive staples into solid material such as wood or masonry. Common staple lengths range from about a quarter inch to nine sixteenths of an inch, with both square and rounded end options available.