Spiral-Sewn Cotton Buffing Wheel shines-up steel, stainless and aluminum Dependable, well-balanced, long-wearing wheel is for coarse buffing and cutting on all materials, particularly steel, stainless and aluminum. Made from selected white cotton material with continuous spiral sewing with 3/8" spacing. Medium cutting action 40 ply buff wheel Best used with Tripoli or Stainless Compound 10″ (253mm) Arbor hole size: 3/4″ (20mm) – 7/8″ (22.3) Close stitched to give a firm wheel. For use with suitable polishing compounds. CLICK ON DESCRIPTION BELOW: Wheel Thickness: 1/2" (13mm)