Ouya CN55R 13-Gauge 1-Inch to 2-1/4-Inch Pneumatic Coil Siding Nailer Kit Heavy duty and lightweight:industrial design Heat treated aluminum housing,and well balanced for easy operating. Adjustable:Depth adjust wheel helps drive nails to the proper depth into a variety of materials. Safe Operation Procedure: Step 1: Keep pressing the trigger; Step 2: With a nail gun against the board, the trigger spring is compressed and the nail can be pressed out. Applications:Making and repairing pallets,crating,fencing,siding,decking and sheathing,farming,subflooring. Operating Pressure: 72.5-108.8 PSI; Nails Length: 1-inch to 2-1/4-inch,Nail Capacity:300PCS.