The Stanley Bostitch 16 Gauge 2" x 1/2" Medium Crown Pneumatic Siding Stapler (650S4-1) drives 16 gauge 1/2" crown staples from 1" to 2" in length.  This stapler features an anti-jam magazine, over-molded rubber grip to maximize comfort and minimize fatigue, adjustable exhaust to direct air away from the user, adjustable depth guide to set staples to desired depths, and long narrow nose for improved line of sight. This heavy duty Bostitch stapler is great for furniture frames, crating, pallets, roof decking, sheathing, cedar shingles, fencing, door and window frames.