The MILWAUKEE® 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" 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. The M18™ REDLITHIUM™ HIGH OUTPUT™ XC6.0 Battery Pack provides 50% more power and runs 50% cooler vs M18™ REDLITHIUM™ XC battery packs. The optimized combination of size and increased power provides a great solution for the entire range of M18™ products.