Bronze End-Plate: Thanks to the bronze end-plate, this series is corrosion and wear resistant, which makes it great for outdoor conditions.
Durability: With a titanium hammer case and metal housing, this tool can withstand even the harshest conditions.

Power: The 3900 Series delivers a high torque output, making every job a breeze. Twin hammer mechanism ensure consistent power and balance. Reverse bias motor to help remove the most stubborn bolts, Pressure-fed mechanism lubrication ensures complete coverage throughout the tool. Optimized for general industrial use, MRO, rail, heavy machinery, and shipbuilding Integral muffler
1-year warranty