The Milwaukee 2719-21 M18 FUEL HACKZALL is the fastest cutting and most powerful one-handed reciprocating saw. Utilizing a POWERSTATE Brushless Motor and a best in class 7/8" stroke length, the M18 FUEL HACKZALL cuts up to 50% faster than competitors. The compact, one-handed design provides superior control and the ability to make cuts in tight spaces. 

• The dual gear counter balance mechanism provides up to 4x lower vibration than traditional reciprocating saws, 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
• The M18 REDLITHIUM XC5.0 Battery Pack provides more work per charge and more work over the life of the pack than competitive batteries
• A rubber seal and weep holes provide superior protection against water and debris.