Bostitch 15-Degree Pneumatic Coil Roofing Nailer (model RN175C). Weight: It is lightweight, weighing approximately 5.3 lbs. Nail Compatibility: The tool drives 3/4-inch to 1-3/4-inch coil roofing nails. Key Features: It includes a depth adjustment wheel and selectable firing modes (single sequential and contact). Engine: The nailer features an upgraded engine and feed system designed for improved performance and durability in roofing applications. Operating Pressure: It is designed to operate at 70-120 psi.