The Milwaukee M18 FFSDC10 Fuel 18v Cordless Free Standing Drain Cleaner has a Switch Pack tool-free sectional drum connection system which allows users to quickly interchange between cable sizes, 8mm, 10mm, 13mm inner core and 16mm open wind spirals, or add a second drum to reach 30m down the line. The M18 Switch Pack incorporates fully enclosed drums to eliminate free spinning parts, providing the user with more protection whilst working in and around fragile fixtures as well as better mess containment whilst unclogging drains. The built-in backpack straps allow users to carry their drive unit separate from their drum for easier transport to any roof, drain, crawl space or clean out. Features & BenefitsBuilt-in backpack straps allow the user to carry their drive unit separate from their drum(s) for easier transport to any roof, drain, crawl space, or clean outSwitch Pack incorporates fully enclosed drums to eliminate free spinning partsOn-tool accessory attachment storage al