Professional Woodworker 50139 is a 16 GAUGE 2-1/2 INCH FINISH NAILER with a magazine capacity of 100 nails. It operates at a pressure of 70-110 PSI and can drive nails ranging from 1.25 to 2.51 inches in length. The tool is designed for precision nail placement and is ideal for a variety of woodworking applications, including framing, trim work, and cabinet making. With its lightweight and ergonomic design, the Professional Woodworker 50139 is easy to maneuver and use, making it a valuable tool for any professional woodworker.