Removes clamp grooves and rounds out pipes. Practical, rugged tools that make easy work of a tough job. Two sizes fit most pipes: 32500 - 1 5/8 inch to 2 7/16 (41.3mm - 61.9mm) and the 32750 - 2 3/8 inch to 3 1/4 inch (60.3mm - 82.5mm).