MAX SN883RH2 SuperFramer 20-Degree Strip Framing Nailer Anti-Double Fire Trigger US Patent 5597106 The tool can be contact or single fire with no adjustments to the tool Pull trigger Maintenance free end cap filter (US Patent 5637125)captures dirt and sand down to microns Only 11-7/8-Inch tall to fit between 16-Inch on center framing easily MAX is known as the quality, durability and feature leader in the pneumatic tool manufacturing world