The 76mm (3") Grease Cutter is designed to clear grease clogs inside pipes. This grease cutter for drains is best used in 76mm (3") to 102mm (4") pipes. The steel construction gives the user longer-lasting head attachments. This head attachment works with 32mm (1-1/4") sectional cable and is designed for the MILWAUKEE® M18 FUEL™ Sectional Sewer Machine w/ ONE-KEY™.