12" 325 Grit Diamond Pre-Polishing Pads with Magnetic Backing for Stone, Glass & LapidaryThe Resin Diamond Pre Polishing Smoothing Pads are engineered for precision pre polishing, ensuring smooth and consistent surface preparation before final polishing stages. Made with premium resin bond and embedded diamond particles, these pads combine durability with effective grinding and polishing power. They excel at removing scratches, leveling surfaces, and refining stone, glass, and ceramic materials to a uniform, pre polished finish. Their

contoured surfaces like sinks

including granite

They come in two types of grades: Metal Grades and Resin Grades

and concrete surfaces

woodworking

our flexible diamond sanding discs conform seamlessly to flat

• Flexible resin-bond diamond formula — Produces smooth

they’re an essential addition to any precision finishing toolkit

engineered stones

composites

The adhesive or Velcro backing allows secure attachment to hand tools or custom setups

and metals — ideal for the first stage of grinding