Your drill with clutch rotates the inner cable only, delivering rotation to the brush head. Package includes cable assembly and seven brush heads. Four are nylon brush heads ( 4″, 8″, 12″, 18″) and three are silica carbide brush heads (8″, 12″, 18″). The silica carbide brush heads are more abrasive and enable you to clean even heavily compacted debris from duct interior. Cable core design offers maximum flexibility, allowing brush head to navigate corners, drops and risers.
This package is available in two cable assembly lengths, 15' and 25'.