Air screw drivers 1. With free speed transmission gear to start the clutch. 2. Press trigger to start gear and then start clutch automatically. 3. While reaching the fixed torque, clutch will racing automatically and bit stop working. 4. With torque regulator. 5. With reversible trigger to change right or left directions. Specification : 1. Item no.: op-302l90. 2. Bolt size capacity (mm): 4. 3. 5s increase torqut n-m (ft-lb): 5 (3.7). 4. Free speed (rpm): 1650. 5. Air pressure (kg/cm2): 6.3 (90 psi). 6. Air consumption (cfm): 3. 7. Overall length (mm): 235. 8. Air inlet (npt): 1/4". 9. Weight (kg): 0.76.
