Achieving the perfect antique finish on stone requires precision in tool selection, particularly when choosing grinding brushes. This guide provides a comprehensive overview of the critical factors in selecting the right equipment for the job. It details the impact of silicon carbide grit size—from coarse 36# for aggressive shaping to fine 500# for satin polishing—and explains the step-by-step logic of progressive grinding. Furthermore, it analyzes the importance of nylon filament properties, highlighting the superior resilience, low water absorption, and chemical resistance of materials like PA612 and PA610. By understanding these core parameters, craftsmen and processors can accurately match their tools to specific requirements, thereby enhancing processing efficiency and elevating the quality of the final product.