This set of 30 diamond pastes — 15 oil-based and 15 water-based — offers the most complete and versatile solution for all polishing, sharpening, and finishing needs. Whether you're working with jewelry, tools, or industrial equipment, this set covers a broad range of grits to ensure the perfect finish every time. Wide Grit Range: From ultra-fine 0.1 microns (~160,000 Grit) for mirror polishing to coarse 63/50 microns (~300 Grit) for aggressive material removal, this set provides everything needed for precision work at any level. Designed for Every Professional: Ideal for jewelers, knife sharpeners, toolmakers, watchmakers, and industrial professionals who require a full range of polishing and sharpening solutions. Why Both Oil-Based and Water-Based? Oil-based pastes ensure longer working time and smoother application, making them perfect for extended polishing sessions. Water-based pastes offer faster cleanup and eco-friendly use, making them ideal for delicate materials and quick refinements. With this comprehensive set, you have the ultimate flexibility to achieve outstanding results on any surface, from metals and gemstones to ceramics and hardened steel.