Monument pipe cleaning tool is the very best and safest way to prepare copper pipe and copper fittings and comes in 15mm and 22mm cutting sizes. Long-lasting double stemmed brushes clean quickly. Quick thorough tubing prep with patented tungsten carbide abrasive technology, they work 3x faster and last 4x longer than conventional tools. Patented ratchet handle makes jobs possible in tight spaces. Eliminates the risk of scrapes or flux burns. Monument MON2915 Copperkey Pipe Cleaning Tool.