These Hi-Tech Diamond smoothing discs ensure rapid removal of scratches and high spots on cabochons. They are excellent for smoothing, refining and polishing glass, gemstones and synthetic material. Using a proprietary technique, a high concentration of diamond is loaded onto each disc to provide an extremely aggressive grinding rate, yet leave an exceptionally smooth finish. Discs are color-coded to easily determine the grit. Diamond smoothing discs come with a 3M pressure sensitive adhesive backing that easily bonds to backing plates and master laps. Pads have 1/2" arbor hole.
