Ridgid 63025 T209 2-Inch Spiral Cutter Drain Cleaning Auger Fits C-4, C-6, C-7, C-8, and C-9 Cables Use to Clear Out Stoppages, Roots, Rags and Sticks For Use With K-400 Drum Machine, K-3800 Drum Machine and K-50 Sectional Machine Easy Snap-on Attachment to Cables