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    Flap Discs
    1. Home
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    Item # DY93173 • Mfr # 93173

    Dynabrade DynaCut 4" 400 Grit Spindle-Mount Sanding Stars

    Description

    Dynabrade DynaCut Sanding Stars For Detail Work

    Dynabrade DynaCut sanding stars provide a spindle-mount abrasive option that sands, deburrs, and polishes in both wood and metal working applications, allowing one setup to handle multiple surface-prep steps on the same station. The 4 inch diameter design focuses the contact area so you can work on profiles and smaller workpieces without overreaching onto adjacent details. Aluminum oxide abrasive construction delivers consistent cutting action across the star flaps, helping maintain an even scratch pattern from edge to edge. A 400 grit rating produces a fine finish suitable for finishing passes, light polishing, or preparing a surface for coating without heavy stock removal. The sanding stars are utilized effectively on contoured, curved, or uneven surfaces, where their flexibility helps them follow the shape instead of flattening it. This conformability helps prevent undercutting on high spots, keeping profiles and edges truer to the original shape.

    Key Sanding Star Details That Support Your Work

    • 4 inch diameter sanding stars focus the working area, which helps you stay on detailed moulding, door panels, or smaller metal pieces without drifting onto adjacent surfaces during sanding or deburring.
    • 400 grit aluminum oxide abrasive gives a fine cut that refines surfaces, which is useful when you need to smooth prior sanding marks or create a consistent surface before applying a coating.
    • Aluminum oxide sanding stars are designed for consistent performance, so the flaps work together to deliver uniform results, reducing the chance of visible streaks or uneven finish after processing.
    • Spindle-mount stars on a 1/4 inch shank provide a defined mounting interface, which supports stable rotation and helps the abrasive contact stay predictable during extended use.
    • Use with the DY52050 sander places the sanding stars in a matched tool setup, so the spindle size, speed, and motion are suited to the star design for efficient sanding and deburring.

    Spindle Mount And Tool Fit For These Sanding Stars

    These 4 inch aluminum oxide sanding stars are mounted on a 1/4 inch shank spindle, giving you a straightforward way to secure them in tools designed for that shank size. The spindle mount keeps the star centered as it rotates, which supports even contact pressure as the flaps work across contoured or flat surfaces. The sanding stars are specified for use with the DY52050 sander, aligning the abrasive head with a tool engineered to drive this style of spindle-mounted star. That matched pairing helps maintain appropriate surface speed and control, which is important when you are sanding crown moulding, door panels, or working inside wooden bowls where access is limited. In metalworking, the same controlled fit helps when you are using the stars for light deburring, weld spatter removal, or scuffing before applying a coating.

    Using DynaCut Sanding Stars In Wood And Metal Shops

    Where These Spindle Mount Sanding Stars Perform

    In woodworking, these DynaCut aluminum oxide sanding stars are utilized on contoured, curved, or uneven surfaces, so they can sand shapes that are difficult to address with flat abrasives. When working crown moulding, the star flaps flex into the profile, maintaining contact in the curves and recesses that normally demand hand sanding. On door panels, the 4 inch diameter helps you work along raised or recessed details without over-sanding nearby flat fields. For wooden bowls, the flexible, conformable flaps follow the inside curvature, providing sanding and polishing action inside the form where rigid discs struggle to reach. In metalworking applications, the same stars are used for light deburring, removing small burrs without aggressively reshaping the workpiece. They also handle weld spatter removal and surface scuffing when preparing a metal surface for a coating, using the 400 grit cut to refine rather than heavily grind.

    How Design Details Improve Repeatable Surface Results

    The uniquely designed DynaCut sanding stars focus on consistent performance and versatility, which matters when you need repeatable finishes across multiple parts. The flexible, conformable star construction allows the abrasive flaps to follow surface variations instead of digging into high spots, helping prevent undercutting that can alter moulding profiles or thin edges. Aluminum oxide abrasive provides a steady cutting action that supports predictable material removal, so each pass contributes similarly to the final finish. The 400 grit rating positions these stars as a fine-step abrasive, bringing surfaces from previously sanded or machined states to a smoother condition ready for polishing or coating. Because the stars are utilized for sanding, deburring, and polishing, a single abrasive head can carry a part through several stages, reducing tool changes during workflow. Matching the 1/4 inch shank spindle mount with the DY52050 sander keeps the setup consistent across jobs, which helps maintain similar results from one batch of parts to the next.

    Common Questions About Dynabrade DynaCut Sanding Stars

    What type of applications suit these sanding stars?

    Dynabrade DynaCut sanding stars are utilized in wood and metal working applications to sand, deburr, and polish, so they handle surface prep and refinement across different shop tasks.

    Why use 400 grit aluminum oxide sanding stars?

    The 400 grit aluminum oxide sanding stars deliver a fine cut suitable for finishing, polishing, or coating prep, helping refine surfaces without heavy stock removal in either wood or metal work.

    How do these sanding stars handle contoured or curved surfaces?

    These sanding stars are designed for contoured, curved, or uneven surfaces, using their flexibility and conformability to follow the shape and help prevent undercutting on high spots.

    What mounting style do these sanding stars use?

    These 4 inch aluminum oxide abrasive stars are mounted on a 1/4 inch shank spindle, providing a clear mounting interface for tools that accept spindle-mounted abrasives.

    Which sander model matches these spindle mount stars?

    These sanding stars are for use with the DY52050 sander, pairing the 1/4 inch shank spindle mount with a tool designed to drive this style of star effectively.

    When are sanding stars helpful for metal surface prep?

    In metalworking, the sanding stars are used for light deburring, weld spatter removal, or scuffing a surface in preparation for a coating, supporting controlled surface conditioning.

    Select DynaCut Sanding Stars For Your Next Setup

    The Dynabrade DynaCut 4 inch 400 grit spindle-mount sanding stars bring aluminum oxide abrasives, flexible conformability, and fine-cut performance together for wood and metal jobs. With their 1/4 inch shank spindle mount and use with the DY52050 sander, they support a consistent setup across sanding, deburring, and polishing tasks on contoured or uneven surfaces. For shops that regularly handle crown moulding, door panels, wooden bowls, or light metal deburring and weld spatter removal, this sanding star design offers a focused way to refine surfaces and prepare them for finishing or coating in a single, versatile abrasive step.

    Diameter (in)
    4 in
    Attachment Type
    1/4 inch shank spindle
    Grit
    400
    Mineral
    Aluminum oxide
    Shape
    Star
    Product Type
    Abrasive Flap Disc
    Arbor Size
    1/4 in
    Manufacturer Series
    DynaCut
    Supplier Pack Size
    1
    Sold In
    1
    Diameter (in)
    4 in
    Attachment Type
    1/4 inch shank spindle
    Grit
    400
    Mineral
    Aluminum oxide
    Shape
    Star
    Product Type
    Abrasive Flap Disc
    Arbor Size
    1/4 in
    Manufacturer Series
    DynaCut
    Supplier Pack Size
    1
    Sold In
    1
    80120150180220320400
    $36.38/Each
    Dynabrade DynaCut 4" 400 Grit Spindle-Mount Sanding Stars
    Item# DY93173 / MFR Part # 93173
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