The Milwaukee M18 FUEL HACKZALL 2719-21 is a powerful one-handed reciprocating saw with a POWERSTATE™ brushless motor and 7/8″ stroke for up to 50 % faster cuts than comparable one-hand saws. Its compact, lightweight design offers superior control in tight spaces or overhead. Dual-gear counterbalance reduces vibration for smoother cutting and less fatigue. REDLINK PLUS™ electronics protect against overload, overheat and over-discharge, while the REDLITHIUM™ XC5.0 battery delivers long runtime.