Head Attachment Kit, Product Type Head Attachment Kit, Compatible Cleaner Series M18 Sectional Machines, Number of Augers 2, Auger Type Funnel Auger, Straight Auger, Number of Cutters 7, Cutter Type Chain Knocker, Double Cutter, Opening Tool, Number of Cables 0, Maximum Drain Line Inside Diameter 6 in, Minimum Drain Line Inside Diameter 3 in, Application Sectional Machines, Cable Material Steel, Compatible Cleaner Manufacturer Part Number 2818-20, 2871-20, Connection Size 7/8 in