Sanding Discs for Polishing | Diamond Wet/Dry | Granite & Marble

These are like a tougher version of fiber sanding discs, made for stone. These 7 inch diamond polishing pads use industrial diamond particles to sand hard surfaces. They take rough-cut granite, marble, or concrete to a smooth, polished state. Features and Benefits - Diamond abrasive surface - Lasts much longer than regular sanding discs when working on masonry or stone. - Hook and loop backing - Lets you change grits fast on your angle grinder or polisher. - Works wet or dry - Using them wet controls dust and makes the pad last longer; dry use is good for quick tasks. - Full grit range available - The kit has everything for a complete process, from removing a lot of material to a fine polish. Applications - Grinding and smoothing a new concrete countertop before sealing it. - Honing and polishing a marble floor to remove scuffs and make it shiny again. - Shaping and finishing the edges on stone pavers or tiles for outdoor or bathroom projects. Step 1: Mount the Sanding Disc to the Mandrel These Diamond Wet/Dry Sanding Discs for Polishing are designed for use with a suitable mandrel. Ensure the disc is securely centred on the mandrel's backing pad. Proper attachment prevents wobbling and ensures even pressure during operation, which is crucial for achieving a consistent finish on materials like granite and marble. The discs are Type: Fibre Sanding Discs, often featuring a hook and loop backing for quick and easy attachment and removal. Option A: Standard Screw Mandrel (402) To mount these 80mm-150mm Outer Diameter discs onto a standard screw mandrel, align the disc's centre hole with the mandrel's screw. Thread the screw through, ensuring it is tightened firmly but not excessively, to avoid damaging the fibre disc. Verify that the disc sits flat against the backing pad. This method provides a secure connection for effective polishing of granite and marble, whether performing dry or wet polishing applications. Option B: EZ Lock Mandrel (EZ402) For quicker disc changes, an EZ Lock Mandrel (EZ402) offers a convenient solution. These mandrels typically feature a spring-loaded or quick-release mechanism. Simply depress the release, slide the Diamond Wet/Dry Sanding Disc for Polishing onto the mandrel, and release the catch to lock it in place. This allows for efficient swapping of different grit discs when working on granite, marble, quartz, tile, or glass. Step 2: Insert the Mandrel into Your Dremel Once the Diamond Wet/Dry Sanding Disc for Polishing is securely mounted on the mandrel, insert the mandrel's shaft into the collet of your Dremel rotary tool. Tighten the collet nut firmly with the collet wrench to prevent the mandrel from slipping during use. Ensure the mandrel is fully seated for stability and safety. These Fibre Discs are suitable for the detailed work often performed with rotary tools on materials such as granite and marble. Step 3: Best Practices for Sanding When using these Diamond Wet/Dry Sanding Discs for Polishing, always start with a lower grit (e.g., 80 grit) for material removal on granite or marble, progressing to finer grits (e.g., 220 grit) for a smooth finish. Apply light, even pressure and use a consistent motion, avoiding excessive force that can cause swirl marks or premature disc wear. For wet polishing, ensure a steady water supply. The lifespan of a sanding disc varies significantly based on material hardness, pressure, and whether it's used for dry or wet polishing.