The Milwaukee M12 FUEL HACKZALL Reciprocating Saw Kit (2520-20) delivers impressive run time, fast cutting and extensive tool life. A compact, 1-handed design provides superior control and the ability to make cuts in tight spaces, with lightweight construction that is optimal for overhead cutting applications. The POWERSTATE Brushless Motor offers constant power output, yet runs cool with no wearable components. REDLINK PLUS Intelligence ensures optimized performance and protects your investment from overload, overheating and over-discharge, while the M12 REDLITHIUM XC4.0 battery pack offers exceptional work per charge and work over the life of the pack for reliable, long-term performance.