Innovative Spiral Dense Bristles：The brush heads feature a novel design with densely packed spiral bristles, ensuring a complete clean of the pipe interior. They effectively take off scale and dirt, making these metal cleaning heads perfect for copper pipe maintenance, scale removal, and surface preparation for pipework​ Dual Sizes for Versatility：The copper pipe cleaner set includes sturdy cleaning heads in 15mm and 22mm sizes, perfectly fitting copper pipes of different diameters. Each size comes with replaceable brush cores, ensuring multi functionality and adaptability. The design allows for easy attachment to drills, enhancing cleaning efficiency and results​ Effortless Quick Change System：The quick change system enables users to easily swap brushes as needed, requiring no complex tools or steps. It greatly facilitates daily operations and prolongs the tool’s service life Robust Metal Construction：Built with sturdy metal, this set withstands heavy duty use, making it ideal for industrial applications and pipe maintenance tasks that demand thorough cleaning​ Replaceable Brush Heads：Equipped with replaceable brush heads, it extends the tool’s lifespan while guaranteeing long term high performance​