Milwaukee 2719-20 M18 FUEL Hackzall (Bare Tool), Red, Black, POWERSTATE Brushless Motor: Increased cutting speed and power throught the toughtest applications REDLINK Plus Intelligence: The most advanced system of cordless power tool electronics; provides optimized performance and overload protection using total sysem communication between tool, battery and charger REDLITHIUM battery technology: Superior pack construction, electronics and performance deliver more work per charge and more work over pack life than any battery on the market 1-Handed design provides superior control and versatitily over standard reciprocating saws 7/8 in. stroke length removes more material with each stroke resulting in the faster cuts Pivoting shoe provides constant contact with the work-piece resulting in smoother cuts with less bucking and vibration REDLINK PLUS intelligence and POWERSTATE Brushless Motor combine to provide up to 3x longer tool life than competitive one-handed recips