Selecting the correct material is critical for performance. For heavy cutting and defect removal, prioritize wool pads or coarse microfiber, as they offer high heat resistance and aggressive abrasion. For finishing and gloss enhancement, choose open-cell foam pads; higher density foam is better for polishing, while softer, low-density foam is ideal for waxing. If you are sourcing for industrial stone or glass, ensure the pads are diamond-impregnated with a grit range from 50# to 3000# depending on the required smoothness.