V nails are typically used for precise joinery with mitre joints, butt joints, and various clever applications that can best be accomplished by the humble "V" shaped fastener. Seen in world wide use for kitchen and bath cabinetry/Picture Frames and other light duty frames that need to be aesthetically pleasing when finished. The KEY...is an adjustable spacer installed under the magazine which allows the operator to "lock" the frame in the right p...osition. The "V" nail will hold strong while remaining inconspicuous. For all this tool does, it somehow manages to remain light and well balanced.