6" 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

and hard metals

Fine edge finishing on optical and stained glass

Custom sizes available to fit your specific machinery requirements

ready for subsequent polishing steps

and industrial technicians worldwide — shop our full range of diamond sanding and polishing discs today for reliable performance and superior surface finishes

Versatile Applications – Suitable for gemstone

or industrial technician

These ultra-thin abrasive strips can be easily wrapped around a dowel

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Available in grits of 60#

Compatible with most standard lapidary and bench grinders

and metals — ideal for the first stage of grinding