Removes clamp grooves and rounds out pipes. Practical tool that makes easy work of a tough job. Fits all standard pipes from 1 5/8″ to 2 7/16″ (41.3 – 61.9mm) Removes grooves. Rounds pipes. Range: 1 5/8″ to 2 7/16″ (41.3 – 61.9mm). A product of Lisle Corporation. MADE IN USA!