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    Abrasive Discs
    1. Home
    2. Abrasives
    3. Abrasive Discs
    Item # DY79820 • Mfr # 79820

    Dynabrade DynaCut Extreme Hook & Loop Sanding Disc 3" 220 Grit Aluminum Oxide Film No Hole 50 Discs-Pack 79820

    Description

    Dynabrade DynaCut Extreme 3 Inch 220 Grit Sanding Disc

    Dynabrade DynaCut Extreme 3 inch 220 grit sanding disc uses premium P graded aluminum oxide abrasives that deliver a fast cut, so leveling and refining surfaces takes fewer passes on each job. The aluminum oxide is manufactured for long life, which reduces disc changeout frequency over a full sanding cycle. An aluminum oxide abrasive on film design focuses the cut into a consistent scratch pattern, helping produce uniform 220 grit finishes across multiple parts. This disc is designed as a 3 inch abrasive disc, fitting workflows that rely on compact sanders for detailed or edge work. As part of the Dynabrade abrasive discs range, the disc supports repeatable performance when used in woodworking or similar shop environments where consistent finishing matters.

    Key Sanding Disc Details That Speed Shop Work

    • Premium P graded aluminum oxide abrasives are manufactured for fast cut and long life, which lets installers remove material efficiently while keeping a consistent scratch pattern over more parts before changing discs.
    • An extremely tough, tear resistant, high performance 3 mil film backing supports the abrasive layer, so the disc resists edge tearing during aggressive sanding and maintains flat contact with the workpiece for predictable finishes.
    • The film backing generates some of the finest finishes in its class and delivers up to 4X the life of paper discs, directly reducing disc consumption and limiting downtime spent reaching for replacements during production runs.
    • A proprietary clog free coating is pigment free and creates a buildup resistant abrasive surface, which helps keep the disc cutting cleanly on dust-prone materials and supports a more consistent cut throughout the disc life.
    • The pigment free clog resistant coating avoids adding color to the work surface, which is important when sanding light materials or preparing parts for finishing where surface contamination can affect coating appearance.
    • A hook and loop attachment system on the disc allows quick disc changes and removal from the pad, so operators can swap grits rapidly and reuse discs that are not completely worn to stretch abrasive usage.

    Hook And Loop 3 Inch Disc Setup And Changeout

    The hook and loop attachment system on this 3 inch abrasive disc lets the disc mount to a compatible hook and loop backing pad by pressing it into place, which speeds tool changeover during multi-step sanding. This attachment style lets users peel the disc away without damaging the backing, allowing partially used discs to be taken off and later returned to service when the same grit is needed again. The no hole layout creates a full abrasive face, so there are no cutouts interrupting the scratch pattern, which is useful when a continuous contact surface is preferred on small parts. The 3 inch diameter focuses the sanding area for controlled work, helping operators target corners, edges, or detail zones without over-sanding adjacent surfaces.

    Why This Dynabrade Abrasive Disc Fits Pro Workflows

    Using The 3 Inch 220 Grit Disc In The Shop

    This Dynabrade DynaCut Extreme 3 inch 220 grit hook and loop no hole aluminum oxide on film sanding disc sits in the fine-sanding range, so it suits tasks like refining profiles after shaping or preparing surfaces for subsequent finishing steps. The P graded aluminum oxide abrasives contribute a predictable 220 grit cut, which supports smooth transitions between coarser and finer steps in a sanding sequence. Because the disc is part of Dynabrade abrasive discs, it aligns naturally with workflows that depend on consistent disc behavior from part to part. The 3 inch format works well with compact sanders where access is tight, helping technicians address small panels, narrow rails, or confined areas while maintaining control of the sanding footprint around hardware locations or joinery details.

    Design Details That Support Consistent Finishes

    The extremely tough, tear resistant 3 mil film backing supports the abrasive during edge passes and on uneven spots, which helps prevent the disc from fraying at the perimeter and changing its contact profile. This stable backing keeps the abrasive layer flat against the work, helping generate the finest finishes and limiting random deep scratches that can appear when a backing fails. With up to 4X the life of paper discs, the film backed disc stays in service longer under the same sanding pressure, allowing more parts to be finished before the abrasive is spent. The proprietary clog free, pigment free coating resists buildup across the disc face, so cutting ability stays more consistent rather than glazing over, which supports even surface preparation across a run of similar components. Because the coating is pigment free, it avoids depositing unwanted color on light-toned materials during sanding, protecting the appearance of pieces prior to clear or light-colored topcoats. The hook and loop attachment system makes disc changes quick and easy, enabling installers and fabricators to rotate between grits without extended downtime, and discs can be saved for future use when not completely worn to get full value from each abrasive.

    Common Questions About This Dynabrade Sanding Disc

    What type of abrasive does this Dynabrade disc use?

    This Dynabrade DynaCut Extreme disc uses premium P graded aluminum oxide abrasives, which provide a fast cut and long life so sanding steps can cover more parts before disc changeout.

    How does the 3 mil film backing help during sanding?

    The 3 mil film backing is extremely tough and tear resistant, so it keeps the abrasive flat on the surface, supports the finest finishes, and delivers up to 4X the life of paper discs.

    What is the benefit of the clog free pigment free coating?

    The proprietary clog free coating is pigment free and buildup resistant, helping the disc stay cutting cleanly while avoiding unwanted color transfer to the workpiece surface.

    How does the hook and loop attachment affect workflow?

    The hook and loop attachment system makes disc changes quick and easy, letting users swap grits rapidly and reuse discs that are not completely worn for efficient abrasive use.

    What sanding role does the 220 grit rating serve?

    The 220 grit rating places this disc in a fine sanding range, suiting tasks like refining shaped surfaces or preparing parts before moving to finishing steps.

    How does the no hole design affect sanding contact?

    The no hole design provides a continuous abrasive surface, which maintains full contact across the 3 inch face and supports an even scratch pattern on small or detailed areas.

    Select This Disc For Film Backed 220 Grit Sanding

    The Dynabrade DynaCut Extreme 3 inch 220 grit hook and loop no hole aluminum oxide on film sanding disc offers a premium P graded abrasive, a tough 3 mil film backing, and a clog free coating that work together to support consistent fine sanding. Pairing these features with a hook and loop attachment system gives shops a 3 inch disc that changes quickly and stays productive over extended runs. For workflows that benefit from controlled 220 grit finishing with an emphasis on disc life and surface consistency, this Dynabrade 79820 disc is built to support repeatable results.

    Diameter (in)
    3 in
    Attachment Type
    Hook and loop
    Grit
    220
    Hole Pattern
    No Hole
    Mineral
    Aluminum oxide
    Product Type
    Sanding Discs
    Vacuum Type
    Non-Vacuum
    Backing Weight
    Film
    Manufacturer Series
    DynaCut Extreme
    Supplier Pack Size
    1
    Sold In
    1
    Diameter (in)
    3 in
    Attachment Type
    Hook and loop
    Grit
    220
    Hole Pattern
    No Hole
    Mineral
    Aluminum oxide
    Product Type
    Sanding Discs
    Vacuum Type
    Non-Vacuum
    Backing Weight
    Film
    Manufacturer Series
    DynaCut Extreme
    Supplier Pack Size
    1
    Sold In
    1
    Dynabrade
    80100120150180220320400
    $35.37/Package
    Dynabrade DynaCut Extreme Hook & Loop Sanding Disc 3" 220 Grit Aluminum Oxide Film No Hole 50 Discs-Pack 79820
    Item# DY79820 / MFR Part # 79820
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