Material: The copper pipe cleaner is cast from high-quality metal, which is , heat- and wear-, and comes with a replaceable metal brush inside for cleaning (Tip: Do not touch it directly with your hands after cleaning, as heat be generated during processing) Convenience: Use a 1/4 inches (about 1.4 cm) hexagonal handle, which can be firmly fixed on the electric drill. When you need a large amount of welding or welding work, save time and energy Function: Clean and polish, or rust the , making welding and sweating easier and more solid Wide -purpose use: a convenient tool for preparing for copper pipes, exhaust pipes, and water -welded joints, and is widely used in automotive, manufacturing or machine maintenance Exquisite workmanship:The hexagonal shank provides a secure and stable drill bit connection, so you can rest that there is no need to worry about the shank popping out or breaking. Applicable occasions:Our tube cleaning brush is an essential tool for painting or staining copper tubes to prepare for watertight welding fittings, and can be widely used in automotive, manufacturing or machining. Package includes: 1 x Metal Copper Tube Cleaner 2 x Replaceable Brushes Colour:Silver Material:Metal Size:3/4inch Package Contents: 1 set drill brushes for cleaning 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.