A narrow crown stapler is used for a variety of carpentry work, such as cabinet building, moulding, aluminum and steel siding, furniture making, and interior or exterior finishing projects. "Narrow crown" refers to the 18-gauge or 1/4-inch width of the staple used.
A narrow crown stapler is a hand-held power tool that uses compressed air to force staples into a surface at a high velocity when the trigger is squeezed. The staples in a narrow crown stapler range from 1/2 to 1 1/2 inches long. Due to its small width, a narrow crown stapler is used to get into tight spaces and leave smaller marks.