Our premium Marathon felt polishing wheels consist of superior quality 100% carbonized wool allowing you to create surface finishes from smooth to mirror brilliance. Every wheel is perfectly balanced to give vibration free, true running performance. 100% wool provides the perfect home for aggressive abrasive polishing compounds. Product Details: 6" Diameter 1" Thickness 1/8" Arbor Hole (Pin Hole) FLINT-HARD Density VARIETY OF USES Perfect for polishing precious and non-precious metals, knife honing and sharpening, leather finishing, de-burring, metal working, jewelry polishing and buffing, gold and silver polishing, and fine polishing for stainless, copper, aluminum, glass, stone, marble and ceramic. Please wear eye protection for safety. Max RPM up to 3400rpm Marathon label may vary. Item 9331