Dynabrade DynaCut Extreme sanding disc uses P graded aluminum oxide abrasive on a 5 inch, 120 grit hook and loop disc, so each stroke cuts aggressively while staying consistent across the surface. The aluminum oxide is manufactured as a coated abrasive, which delivers fast cut and long life on typical sanding tasks. A high performance 3 mil film backing supports the abrasive grain, so the disc stays extremely tough and tear resistant when working over edges or sharp transitions. This film backing also generates the finest finishes compared to paper discs, which matters when you need a smooth, uniform surface ready for the next finishing step. The product is built specifically as an abrasive disc for sanding applications, so it fits cleanly into woodworking and shop workflows.
This 5 inch 120 grit hook and loop disc uses a hook and loop attachment system, so it fastens to compatible backing pads by pressing the disc onto the pad face. The hook and loop connection holds the disc securely under sanding load, so the disc stays flat against the pad and tracks the tool evenly. When a grit change is needed, the disc can be peeled away from the pad and a new disc pressed on, so setup between grit steps fits smoothly into production or shop routines. Because the backing is a high performance 3 mil film, the disc stays dimensionally stable on the pad, so contact with the workpiece remains consistent across the full 5 inch diameter. The 25 hole vacuum pattern aligns with the pad to move dust toward the center extraction area, so suction from the sander is used efficiently.
This aluminum oxide film sanding disc is built as a coated abrasive for sanding operations where 120 grit is appropriate for shaping or pre-finish work. The premium P graded aluminum oxide is suited to fast material removal, so it works well when leveling surfaces or refining previous grit scratches. The high performance 3 mil film backing keeps the disc extremely tough and tear resistant, so it holds up when sanding near corners, profiles, or joints where lesser backings can fail. Because the film backing generates the finest finishes compared to paper discs, it suits applications that need a cleaner scratch pattern before moving to finer grits or finishing steps. The proprietary clog free coating is pigment free, so it avoids adding color during sanding and keeps the abrasive surface buildup resistant during extended passes.
The 25 hole "Extreme" vacuum hole pattern is designed to direct sanding dust and sanding debris to center extraction holes where vacuum draw is the greatest, so more debris is pulled off the surface instead of recirculating under the disc. This improves visibility at the work area and supports a more consistent scratch pattern because dust is less likely to load under the abrasive. The clog free coating keeps the abrasive surface buildup resistant, so cutting edges stay exposed longer and the disc maintains its fast cut behavior over more workpieces. Since the coating is pigment free, the abrasive works without adding unwanted color, which is important when preparing surfaces where a clean base is needed. The hook and loop attachment system further supports repeatable results by allowing discs to be removed and later saved for future use when not completely worn, so partially used discs can be matched back to similar tasks or grit steps without waste.
The Dynabrade DynaCut Extreme sanding disc has a 5 inch diameter, so it suits sanding tools and backing pads built for this common disc size.
This aluminum oxide film sanding disc is 120 grit, so it targets intermediate sanding where shaping and pre-finish surface refinement are needed.
The high performance 3 mil film backing keeps the disc extremely tough and tear resistant, so it maintains a flat, stable sanding surface that produces fine finishes.
The 25 hole vacuum pattern directs sanding dust and debris toward center extraction holes, so dust collection is more effective and the sanding path stays cleaner.
The proprietary clog free coating is pigment free and buildup resistant, so abrasive grain stays exposed longer and disc life is extended over multiple passes.
The hook and loop attachment system lets the disc press onto a hook-faced pad and release by peeling, so disc changes and grit swaps happen quickly.
The Dynabrade 91538 abrasive disc pairs premium P graded aluminum oxide with a 3 mil film backing, so it delivers fast cut and refined finishes on 5 inch hook and loop tools. The 25 hole "Extreme" vacuum pattern and clog free coating move dust efficiently while keeping the abrasive surface open, so each disc remains productive for longer sanding runs. For workflows that rely on quick grit changes and consistent surface quality, this 120 grit aluminum oxide film sanding disc provides a focused option for everyday sanding tasks.
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