Comprehensive cleaning tool: This set includes a 4 in 1 battery brush dual head and pipe cleaners in both 15MM and 22MM sizes, providing thorough cleaning and rust removal for various applications. Userfriendly design: The hexagonal handle provides stability, while fine steel bristles resist torque and heat, making the tool easy and convenient to use. Engineered for performance: Crafted from metal, this copper pipe cleaner is built to withstand demanding tasks, ideal for automotive and industrial cleaning needs. Applications: Essential for preparing copper pipes before welding, this tool streamlines processes in manufacturing and machining environments. Use scenarios: Prewelding prep for copper piping in plumbing, HVAC, and fabrication workflows. Cleaning and rust removal on automotive components and machinery involving copper or copper alloys. Routine maintenance cleaning during manufacturing and machining to prep surfaces before assembly.