Sanding Discs | 125mm 8-Hole Hook & Loop | For Random Orbital Sanders

These 5-inch, 8-hole sanding discs are made for random orbital sanders. The aluminum oxide grit gives a consistent finish on many materials. Unlike stiff fiber sanding discs for heavy grinding, these flexible discs work for surface prep and finishing. Features and Benefits - 8-hole dust extraction pattern - It lines up with most 5-inch orbital sanders, including DeWalt. This pulls dust away and helps prevent clogging. - Aluminum oxide abrasive - It cuts cleanly and wears evenly on wood, metal, and composites. This makes a uniform scratch pattern. - Hook and loop backing - Discs attach firmly to your sander's pad. They peel off easily for fast grit changes. - Assorted grit options - Grits from 60 to 2000 are available. They handle everything from removing material to fine polishing. Applications - Wood Furniture - Start with 80-120 grit to remove old finishes. Move to 180-220 grit to prepare wood for stain. - Metal Fabrication - Smooths welds, removes rust, and prepares steel or aluminum surfaces for painting. - Automotive Refinishing - A good choice for feathering body filler, scuffing primer, and smoothing clear coats. Step 1: Mount the Sanding Disc to the Mandrel These 125mm 8-hole hook and loop sanding discs are designed for use with random orbital sanders. The hook and loop attachment system allows for quick and easy disc changes. Simply align the 8 holes on the sanding disc with the corresponding holes on your sander's backing pad and press firmly. Ensure the disc is centred for balanced operation and effective dust extraction. The durability of a sanding disc depends on the grit used and the material being sanded. Finer grits generally wear slower than coarser grits like 80 grit. Option A: Standard Screw Mandrel (402) While these 125mm discs are primarily for random orbital sanders, smaller versions of hook and loop sanding discs are available for rotary tools. For those, a standard screw mandrel would be used. The disc is secured to the mandrel via a screw, providing a firm attachment. This method is common for smaller diameter sanding accessories where a robust connection is needed for high RPM applications. Ensure the screw is tightened securely to prevent the disc from detaching during use. Option B: EZ Lock Mandrel (EZ402) The EZ Lock Mandrel offers a tool-free solution for attaching smaller sanding discs to rotary tools. It allows for rapid changes, beneficial when switching between various grits like 60-grit for aggressive material removal and 220-grit for finishing. This system prioritises speed and convenience over the traditional screw method. However, for these 125mm random orbital sanding discs, the hook and loop backing pad system is the primary method of attachment. Step 2: Insert the Mandrel into Your Dremel This section is not applicable as these 125mm 8-hole hook and loop sanding discs are designed for random orbital sanders, not Dremel rotary tools. Random orbital sanders do not use mandrels in the same way Dremel tools do. The sanding disc attaches directly to the sander's backing pad using its hook and loop system. Ensure your random orbital sander is unplugged before attaching or removing any sanding discs for safety. Step 3: Best Practices for Sanding For optimal results with 125mm 8-hole hook and loop sanding discs on a random orbital sander, always start with a coarser grit (e.g., 60-grit) for significant material removal, progressing to finer grits (e.g., 220-grit, up to 2000-grit) for a smooth finish. Apply light, even pressure and let the sander do the work. Over-sanding in one spot or applying too much pressure can lead to swirl marks. Utilise the 8-hole pattern for efficient dust extraction, extending disc life and improving visibility.