Versatile Cleaning Kit: Includes 1/2Inch or 3/4Inch or 1Inch copper brushes for plumbing needs. Ideal for HVAC systems, plumbing drains, gas lines, and vents. These tools are essential for maintaining clear and functional pipes in various industrial settings. Efficient & Power-Driven Cleaning: Attach these brushes to any standard electric drill (excluding impact drivers) to remove rust and debris swiftly. The hex shank design secures the brush in place, allowing for a fast, effective cleaning process that cuts your work time in half. Superior Durability with Copper Bristles: Our brushes feature hardened copper bristles that outperform and outlast steel counterparts by 30%. They efficiently scrape away rust and scale without damaging the pipes, ensuring a longer lifespan and consistent performance. Specification:1Inch or 1/2Inch or 3/4Inch Color:Blue Material:Metal Package Contents: 1 * Metal Copper Pipe Cleaner Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.