This Bostitch Industrial 16 Gauge 2" x 7/16" Medium Crown Pneumatic S5 Series Construction Stapler (651S5) (651S5) accepts 1" - 2" length 7/16" medium crown staples. The magazine can hold 160 staples for increased efficiency. A rapid fire engine produces 10 staples per second so the tool will work as fast as you. It is lightweight at just 4.2 lbs. and has an over-molded rubber grip for your comfort in prolonged use applications. The tool-free depth of drive adjustment is designed for proper setting of different fasteners while tool-free jam clearing reduces downtime. The stapler has an adjustable rafter hook so the tool can hang on either the left or right side. It is ideal for applications of materials such as plywood sheathing, roof decking, wood shingles, and vinyl siding.