Specification:
Voltage: 20VDC  
No load speed:0-450/      0-1600 RPM  
Max.torque:80N.M 
Chuck size:13MM                                          
Motor :4820#

80NM torque for heavy work 
Brushless  motor, max. power, best performance & longer life time
Convenient to use without cord
Powerful motor for the toughest applications
Soft grip handle for comfortable working
Large trigger switch with variable speed
Lock-on switch for continuous working convenience        
Built-in LED worklight