Silicon Carbide Grease Mix, Gray, Container Type Can, Size 1 lb., Application Lapping, Honing and Grinding Valve Seats, Gear Teeth, Dowel Holes In Dies, Bushings, Flat Surfaces On Seals and Castings, Machining Parts, Shafts, Knives and Cutting Blades, Grade 1A, Grit 320 x