The Bostitch BTFP12182 Triple Wall Carton Closing Stapler, drives 1-1/4" crown SW9060 Series staples up to 1-1/2" in length. This pneumatic triple wall carton stapler is designed for high-volume, heavy-duty use. Features on the BTFP12182 include adjustable clinchers for different thicknesses of cardboard and clinch tightness, as well as the ability to blind fasten double and triple wall cartons. This tool is capable of driving staples up to 1-1/2" in length for up to 1" total cardboard thickness. Comes with one-year warranty.