M12 Fuel, Hackzall Reciprocating Saw Kit, 1 Handed Design, Provides Superior Control & Versatility, Compact Size Allows For Cutting In Tight Spaces, Light Weight Makes Overhead Work Easier, Powerstate Brushless Motor Supplies Constant Power For Faster Cuts & Reduced Heat For Extended Life, Red Link Plus Intelligence, Red Lithium XC 4.0 Battery Pack Provides More Work Per Charge, Dual Gear Counter Balance Mechanism Significantly Reduces Vibration, Providing Faster Starts In Metal & Reduced User Fatigue, Includes, M12 Red Lithium XC 4.0 Extended Capacity Battery Pack, M12 Lithium-Ion Battery Charger, Contractor Bag & Multi-Material Blade.