Snap-on’s new 7850 series of cordless tools feature a microprocessor controlled trigger switch which maximizes tool performance, runtime and durability.  The new CT7850 1/2" Drive Cordless Impact Wrench has a torque output of 450 ft./lbs. and is powered by an 18V lithium battery.  This versatile cordless impact provides more torque at a smaller size and lighter weight, giving the user more control with less strain. W/battery and charger