The Milwaukee 2719-20 M18 FUEL HACKZALL is the fastest cutting and most powerful one-handed design reciprocating saw. Utilizing a POWERSTATE Brushless Motor and a best in class 7/8 inch stroke length, the M18 FUEL HACKZALL cuts up to 50% faster than competitors. The compact, 1-handed design provides superior control and the ability to make cuts in tight spaces. The dual gear counter balance mechanism provides the lowest in-cut vibration of any reciprocating saw, resulting in faster cut-starts in metal and reduced user fatigue. REDLINK PLUS Intelligence ensures optimized performance and protects your investment from overload, overheating and over-discharge. A rubber seal and weep holes provide superior protection against water and debris.