Reversible air powered drills:
1. Collet size: 3/8". 
2. Free speed (RPM): 1,800. 
3. Sound level dB(A): 86. 
4. Vibration (m/s2): 2.4. 
5. Air pressure (PSI): 90 PSI. 
6. Air inlet (NPT): 1/4". 
7. Avg. air cons. (CFM): 4.
Packing: 10pcs/ctn/0.8’, 12/13Kgs.