Cobra 30500 50" Drain Auger Cobra 30500 50" Drain Auger Features: High quality spring wire offers maximum flexibility for the tightest bends Use for small or medium household drains Rust resistant high grade, high carbon round diameter spring steel wire Integrated corkscrew open wound boring head Unique high power torque twist design which provides maximum thrusting action even through strainer cross bars Size: 1/2" x 50"