Our M18 FUEL SWITCH PACK Sectional Drum System 1/2" Kit is the first drain cleaning solution that combines the benefits of sectional and drum machines, creating the single most versatile and mobile machine on the market. The drain cleaning machine allows you to tackle the most frequent challenge of any drain cleaning application - getting the machine onto the job. The SWITCH PACK System utilizes a modular design with backpack straps allowing you to easily transport it to any roof, drain, crawl space or cleanout. The tool-free drum connection allows you to quickly switch between cable sizes or add a second drum, allowing you to reach 100' down the line. All MILWAUKEE SWITCH PACK drain cleaning drums are fully enclosed providing you with the best protection against job site mess. The POWERSTATE Brushless Motor provides you with more clearing power than corded units for tough jobs in up to 4" drain lines. Built-in REDLINK PLUS Intelligence improves your control with an integrated drum brake, slowing the machine up to 5X faster than competitor drums. Our M18 REDLITHIUM battery pack powers through multiple jobs on a single charge, providing cordless mobility, safety, and power supply to the drain cleaning industry. The 1/2" cable is best for use on 3" - 4" drain lines. Other cable sizes also available. The SWITCH PACK is also compatible with our CABLE DRIVE Assembly (47-53-2774) that allows you to automatically feed and retract cable up to 15-20 feet per minute. The CABLE DRIVE assembly quickly attaches to and swaps between any Milwaukee SWITCH PACK Drum with the Mounting Plate (47-53-2773) installed. This kit includes (2) SWITCH PACK Drum w/ Anchor Cable (47-53-2775), (2) 1/2" x 50' Inner Core Coupling Cable w/ RUST GUARD Plating (48-53-2774), (1) 5PC Medium Cable Head Attachment Kit w/ RUST GUARD Plating (48-53-2790), (2) M18 REDLITHIUM XC5.0 Extended Capacity Battery Pack (48-11-1850), (1) M18 & M12 Multi-Voltage Charger (48-59-1812).