BOSTITCH F21PL Round Head 1-1/2-Inch to 3-1/2-Inch Framing Nailer with Positive Placement Tip and Magnesium Housing Compressor/Air Tool Features: Fastener Collation,Fastener Depth Control, 1-1/2-inch to 3-1/2-inch framing nailer; 1,050 inch-pounds of driving power; sequential and bump trigger 2 nailers in one: includes two quick-change nosepieces, converts to framing or metal connector applications Lightweight magnesium housing; integrated rubber skid pads; rubber grip Includes 1 framing nailer 14-1/4 by 20-1/2 inches; 8.1 pounds 1-1/2-inch to 3-1/2-inch framing nailer; 1,050 inch-pounds of driving power; sequential and bump trigger 2 nailers in one: includes two quick-change nosepieces, converts to framing or metal connector applications Lightweight magnesium housing; integrated rubber skid pads; rubber grip Includes 1 framing nailer 14-1/4 by 20-1/2 inches; 8.1 pounds; 7-year limited warranty Two nailers in one: includes two quick change nosepieces to convert tool to either framing or metal connector applications Patented push button adjustable depth guide sets nails to desired depths Lightweight magnesium design for durability Adjustable rafter hook allows users to hang tool on rafters and joists