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Dynabrade DynaCut Extreme 3 inch sanding disc is a 120 grit aluminum oxide abrasive disc on a 3 mil film backing, so it handles both stock removal and fine finishing where a consistent scratch pattern is needed. The P graded aluminum oxide abrasive is manufactured for fast cut and long life, which keeps material removal predictable across more parts or panels. Because the disc uses a high performance 3 mil film backing, it stays extremely tough and tear resistant, which supports aggressive sanding without edge blowout. That same film backing generates some of the finest finishes in this abrasive class, which helps reduce follow-up sanding steps. The 6-hole "Extreme" vacuum hole pattern directs sanding dust and sanding debris to center extraction holes, so dust is pulled where vacuum draw is greatest and the work surface stays clearer. This disc is part of Dynabrade's abrasive disc line within coated abrasives.
This Dynabrade DynaCut Extreme disc uses a hook and loop attachment system, so it fastens directly to a matching hook and loop backup pad for quick swaps between grits. The 3 inch diameter size matches 3 inch sanders or backing pads where a compact sanding footprint is needed on narrow parts or edge work. With 120 grit abrasive, the disc serves well in intermediate sanding steps where you are refining surfaces after coarser grits while still correcting minor defects. The 6-hole "Extreme" vacuum hole pattern is designed so sanding dust and debris are directed toward the center extraction holes, which lets vacuum-equipped tools move dust away from the surface during operation. This combination of attachment style, grit, and hole layout supports efficient workflow when changing discs for different stages of sanding.
This Dynabrade DynaCut Extreme 3 inch 120 grit hook and loop 6-hole aluminum oxide on film sanding disc fits abrasive disc tasks where a small diameter pad must reach tighter areas or edges. The P graded aluminum oxide abrasive is configured for fast cut and long life, so it performs well when you need to remove material over multiple parts without frequent disc replacement. Because the disc uses a 3 mil film backing that is extremely tough and tear resistant, it maintains its shape when working along profiles or near corners. That backing also generates some of the finest finishes within its grit range, which matters when 120 grit is being used as a bridge between coarse leveling and finer finish sanding on wood or similar substrates. The proprietary clog free coating is pigment free and offers a build-up resistant abrasive surface, so it keeps dust from loading into the abrasive layer and supports consistent contact across the disc face.
The "Extreme" vacuum hole pattern is designed so sanding dust and debris are channeled toward center extraction holes, placing them where vacuum draw is the strongest and improving debris removal as you work. This pattern keeps more of the abrasive surface open, which helps the P graded aluminum oxide grains cut more uniformly over time. The tough 3 mil film backing resists edge tearing, so the disc continues to run flat against the backing pad even after extended use, helping maintain an even scratch pattern on wide or narrow surfaces. With 120 grit on an aluminum oxide on film construction, the disc bridges stock removal and surface refinement in one step, which can shorten sanding sequences on many jobs. The hook and loop attachment system lets you remove partially worn discs and save them for future use, which supports a workflow where each grit is brought back into service exactly when the surface calls for it.
The Dynabrade DynaCut Extreme disc uses coated abrasives manufactured with premium P graded aluminum oxide, providing fast cut and long life for repeated sanding passes on suitable materials.
The disc's high performance 3 mil film backing is extremely tough and tear resistant, so it stays intact under pressure and helps generate the finest finishes within the disc's grit range.
The proprietary clog free coating is pigment free and build-up resistant, so sanding dust and debris are less likely to load the abrasive surface, helping maintain consistent cutting action.
The Extreme vacuum hole pattern directs sanding dust and sanding debris to center extraction holes where vacuum draw is the greatest, improving dust removal during sanding operations.
The Dynabrade DynaCut Extreme 3 inch disc uses a hook and loop attachment system, allowing quick disc changes on compatible hook and loop backing pads.
Dynabrade 79854 is a 3 inch diameter, 120 grit aluminum oxide on film sanding disc, aligning it with intermediate sanding stages that need a controlled scratch profile.
The Dynabrade DynaCut Extreme 3 inch 120 grit hook and loop 6-hole aluminum oxide on film sanding disc combines P graded aluminum oxide abrasive, a 3 mil film backing, a clog free coating, and an Extreme vacuum hole pattern to support efficient sanding. When a 3 inch, vacuum-ready, hook and loop mounted film disc fits your tool setup and process, this part number 79854 configuration delivers fast cut, fine finish potential, and dust-directed hole layout in one disc. Choose this disc where you want long life from a small diameter film-backed abrasive with 120 grit performance.
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