The Bostitch 651S5 air-powered construction stapler drives 16-Gauge 7/16 inch crown staples from 1 inch to 2 inch in length. The 651S5 is a professional grade stapler at an excellent value. A lightweight and compact design make this unit very versatile. Features include an adjustable depth of drive, switchable trigger for sequential or bump fire operation, quick release nose for jam clearing, and vinyl siding attachment. The Bostitch 651S5 works well for lathing, sheathing and vinyl siding installation.