3?4" (20 mm) to 4" (110 mm) Drain LinesComplete unit includes: drum machine, inner core cable, 3-piece head/cutter set, and gloves. Corrosion resistant cable drum tilts for easier feeding power and includes 1/2-inch x 90-feet of cable. Compact design for easy cable change and transport. Direct drive motor for enhanced power; spins at 300RPMs. 3?8" (10 mm) cable best for 1 1?2" (40 mm) to 3" (75 mm) lines up to 100' (30,5 m)1?2" (12 mm) cable best for 2" (50 mm) to 4" (110 mm) lines up to 90' (27 m)Optional sink drum holds up to 50' (15 m) of 5/16 (8 mm) or 1/4 (6 mm) cable