18" 140 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

and complex patterns

and advanced composites with ease

and can be cut with scissors to create customized polishing tools

General-purpose lapidary grinding and shaping

creating a uniform contact surface for flawless results on both flat and contoured surfaces — from intricate jewelry components to large architectural glass panels

surfaces reach maximum smoothness and brilliance

high surface performance

Enhanced Efficiency: Designed for pre-polishing  applications to streamline the polishing process and improve workflow efficiency

Grit: 60 | Size: 8" x 3" | Bond: Electroplated Diamond

Designed for versatility

semi-gloss finish just before final polishing

and industrial manufacturing