Rothenberger Spiral Sawtooth Cutter 5/8".

Durable construction This special tool chops small roots, branches and other materials with ease Weighs 0.5-Pound A must have when working with piping Specifications: 5/8-Inch Coupling, 1-3/4-Inch Diameter, 1-Inch Length, 2-Inch to 3-Inch Pipe Capacity