Innovative Products of America's (IPA) #8090B-8090S Professional Diesel Injector-Seat Cleaning Kit features three distinct types of brushes: Helix Brushes with a specially-engineered tip for deep seat cleaning, Two-Stage brushes for seat and inner seat-hole cleaning, and Bore Brushes for all bore and tube wall cleaning.According to the company, this cleaning kit is ideal for removing carbon, rust, and other debris from injector seats, bores, and cups for most diesel applications. The ¼" drive hex shaft allows for quick interchange of brushes, drivers and extensions; for hand use and Low Speed drills that should not exceed 600 RPM.Available in (#8090B) brass and (#8090S) stainless steel, the set includes 13 specialty brushes with 3", 4" and 6" brush lengths, a 6" flexible and rigid extensions, a driver handle and 400 assorted Swab-Eez in a blow-molded case.The #8090B-8090S Professional Diesel Injector-Seat Cleaning Kit, as well as more contact care solutions are available from IPA.