About this item Sturdy: The copper pipe cleaner well casted from high quality metal, is long lasting, heat and wear resistant, comes with three replaceable metal brushes (Tips: please do not touch the product with bare hands right after cleaning, as it generated heat during the process) Convenient: Designed for cleaning 1/2 in outer diameter pipes. With the 5/16 in hex shank, it can be firmly attached to power drill, saves time and effort when you need mass of soldered or brazed working Functional: Cleans the polished, sprayed or rusted surface, to make soldering and sweating easier and stronger Wide Application: A handy tool for copper pipes, vent pipes and watertight soldered joints preparation work, widely applied in automotive, fabrication or machines repairing Size: Overall size is 1.5 x 2.7 in (W x H), easily fits in tool box or be carried around to work