This jack hammer increases productivity on tough demolition applications. It delivers forcible chipping with 20.7-feet-per-pounds of impact energy and 1,400 blows per minute. Its automatic oiling system with unique "air pressure oil control" extends the life of the 11.4 Amp motor, and enables extended use without oiling. Other features include idle hammering prevention to increase tool life, and an adjustable side D-handle, which rotates for better control.