1. Versatile PVC Pipe Maintenance: Suitable for 6mm spring, 6.35mm universal drill bit. The FlexCoil Drain Descaling Chain is designed for descaling and unclogging shower drains, sink traps, and small holes with multiple bends. Hardened steel chains deliver aggressive cleaning without damaging pipes. 2. Flexible Drain Snake Flexible design, strong adaptability: This pipe unclogging tool features a flexible coil shaft design with adaptability. It can be easily bent to fit various complex shapes of drain pipes. 3. Compact DrillPowered Flex Shaft Pipe Descaling Tool: Lightweight 6mm (1/4') flex shaft easily attaches to any standard drill. The operation method is simple and easy to understand. Just insert the descaling chain into the drain, connect it to a power source like a handheld device or drill, and start rotating to begin the unclogging process. 4. Durable Drain Clog Remover: This multipurpose PVC pipe unclogging tool is suitable for daily household drain maintenance and is also widely used in commercial locations, public facilities, industrial and boiler pipe descaling, etc. Ideal for grease trap lines and bathroom drain pipes without needing to remove the pan.