7/8 X 4 Copperhead Carbide Tip Annular Cutter. Feature a brazed-in durable grade carbide insert for extended tool life. Used for holemaking in all types of steels especially harder to cut materials such as stainless steel and cast iron. Copperhead carbide annular cutters offer extended tool life on abrasive and tough to cut materials such as stainless steel and cast iron. Unique Hougen design includes a special tooth geometry that helps maintain better chip flow. 3/4 two flat Fusion2™ shank - fits Hougen mag drills and one-touch arbor systems
