16" 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

These Pads are designed for polishing

and advanced composites with ease

Near-polish finish on optical glass components

enabling aggressive material removal while delivering smooth

surfaces begin to show their natural luster

and other leading multi-tool platforms

Compatible with both wet and dry grinding systems

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At this grit level

Total Length 50mm

and industrial manufacturing

Metals: Perfect for grinding and polishing tungsten