1. Square drive: 1/2". 
2. Capacity bolt size: 5/8" (16mm). 
3. Free speed (RPM): 8,000. 
4. Max. torque (ft-lb): 460. 
5. Sound level dB (A): 95. 
6. Vibration (m/s2): 9.0. 
7. Air pressure (PSI): 90PSI. 
8. Air inlet (NPT): 1/4". 
9. Avg. air cons. (CFM): 4.5.
Packing: 10pcs/ctn/1.5’, 26/27Kgs.