1. Hammer mechanism: twin hammer. 
2. Max torque (forward): 800ft-lbs/1085Nm. 
3. Free speed: 7,500 RPM. 
4. Recommend air pressure: 90PSI. 
5. Air inlet: 1/4 NPT. 
6. Min. hose size: 3/8" I.D. 
7. Avg.air consumption: 4.5 CFM. 
8. Over length: 190 mm (W) x 190 mm (H).
Product weight: 1.95kgs(4.3 Lbs).