CTA Tools 2219   Fine/Coarse Lapping Compound, Black3 Easy to Use and Versatile Simply Mix with Oil Until Desired Consistency is Obtained Includes 27-Grams of Coarse Grain Compound Expertly Designed for Valve Roughing Needs Featuring 27-Grams of Fine Compound Designed for Finishing Work Requirements Perfect for Projects Including Seating Valves, Mating Gears, Lapping Injectors and Honing Knives Intended For Use With CTA Tools #2222 Or #2224 Or #2119