The Patented DEB-3 Flare Brush has a cobalt base hard facing which is flame-coated to the ends of stainless steel aircraft cable. This flare brush is ideal for removing deposits and contaminants from the inside of pipes, engine ports and additional hard to reach inner diameters. The DEB-3 Flare Brush 3-Prong Heavy Duty should be used with slow RPM drill motor for ID's up to 1-1/2 inch diameter.