M12 FUEL 12-Volt Lithium-Ion Brushless Cordless HACKZALL Reciprocating Saw Kit W/ Two 4.0 Ah Batteries, Charger & BagThe Milwaukee 2520 20 M12 Brushless Cordless FUEL HACKZALL is the fastest cutting and most powerful saw in its class, delivering over 4X more run time, up to 70% faster cutting and up to 6X longer tool life than competitive saws. The compact, 1 handed design provides superior control and the ability to make cuts in tight spaces. Its' light weight design is optimal for overhead cutting applications. The Power state Brushless Motor outperforms all