The Tacwise Z3-140 Staple Gun. Loaded with unique features that include a margin guide, fold away handle, pressure adjuster and a belt hook. Firing the popular Tacwise 140 flat-wire staple (6-14mm) and 180 Nails and Headless Pins up to 15mm, this staple gun is perfect for a wide range of applications including plastic sheeting, insultaiton, flooring underlay and more.