Heavy duty universal internal/external deburring tool for copper and plastic pipes 1/8'' to 1-3/8'' O.D. by JB (RT11006). Has a polished cutting bit made of hardened special steel and is smooth running. JB is the exclusive provider of the high quality German engineered tubing tools from Rothenberger. Rothenberger uses only the highest quality materials set against the strictest German standards to render the best and most reliable tools in the marketplace. Backed by a 24-month over the counter warranty, we stand behind these products as if we were putting the JB name on it. Once you get your hands on these tools, you will see why Rothenberger tools are Just Better.