Aluminium Oxide Velcro Sanding DiscsDerekh Aluminium Oxide Velcro Sanding Discs The Derekh Aluminium Oxide Velcro Discs are high performance abrasive discs designed for fast, efficient sanding and finishing across wood, metal, paint, and composite surfaces. Made from premium aluminium oxide grain, they provide a sharp, consistent cut with excellent durability and long service life. Featuring a hook and loop (Velcro) backing, these discs attach firmly to orbital or random orbital