10Pcs Heavy Duty Drain Auger Cutter Kit This professional drain cleaning attachment set is widely compatible with K-400, C-4, C-6, C-7, C-8, C-9 drain cleaning machines and 5/16-inch, 3/8-inch, 5/8-inch drain cables, ideal for unclogging kitchen sinks, bathroom drains, sewer pipes and household plumbing systems. Made of high-carbon steel with rust-proof coating, the attachments are wear-resistant and long-lasting for heavy-duty use. The quick-release design allows fast installation and replacement without extra tools, saving time and effort for both DIY users and plumbers. The all-in-one 10-piece set includes 4 cutting tools, 5 augers and 1 screwdriver, meeting various clog removal needs. It effectively clears hair, food waste, grease and blockages to keep drains flowing smoothly.