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    Abrasive Discs
    1. Home
    2. Abrasives
    3. Abrasive Discs
    Item # FJ578348 • Mfr # 578348

    Festool Granat Hook & Loop Sanding Disc 5" 100 Grit Hardened Aluminum Oxide Paper Backed 9 Hole 50 Discs-Box 578348

    Description

    Festool Granat 5 Inch 100 Grit Sanding Disc Use

    Festool Granat 5 inch 100 grit sanding disc uses hardened aluminum oxide on a paper backed disc, giving consistent cutting action that helps installers and woodworkers level and smooth surfaces efficiently in repeatable shop and jobsite work.

    The 100 grit grade provides a medium cut that refines bare wood and coated surfaces, letting you move from shaping to pre-finish sanding without changing systems or losing control over surface flatness.

    The hook and loop backing allows quick attachment and removal from compatible sanding pads, so discs can be swapped or reused during a workflow without slowing down between grits or repair passes.

    The 9-hole pattern aligns with compatible sanders to move dust through the pad, which supports cleaner sanding zones and helps the abrasive stay effective across more passes on the same surface.

    The Granat formulation is described as Festool's most long-lasting and highest performing abrasive, which supports extended working time per disc and steady results across larger door, panel, or component runs.

    Key Granat Disc Details For Daily Work

    • The abrasive layer uses hardened aluminum oxide, giving a sharp, durable cutting surface that maintains its bite as you sand larger areas or tougher coatings in shop or site conditions.
    • A synthetic resin bond holds the abrasive to the paper backing, providing a stable grain anchor that supports consistent scratch patterns during extended passes on wood, plastics, or composites.
    • The closed coated grain coverage means the abrasive surface is densely covered, delivering an even scratch that is suited to smoothing between finish stages where uniformity matters.
    • The disc is specified as 5 inch diameter, matching common random-orbit sanders and helping maintain balance and coverage across cabinet parts, trim lengths, or built-in components.
    • The hook and loop backing interfaces with compatible pads, enabling quick disc changes and reliable grip during overhead work or vertical sanding where slippage would slow progress.
    • The 9-hole design is configured for dust extraction through the pad, supporting clearer sightlines on the surface and helping the disc resist clogging while you work through multiple parts.

    Installation And Sanding Workflow Characteristics

    The 5 inch hook and loop format lets the Festool Granat 5 inch 100 grit sanding disc mount directly to compatible hook and loop sanding pads, so attaching the disc becomes a press-on step rather than a tool-based change.

    The 9-hole layout is designed for sanders with matching dust-extraction pads, guiding dust away from the contact area so the abrasive face stays more open while you move across panels, frames, or solid surface sections.

    The paper backed construction combines flexibility with support, allowing the disc to conform slightly to minor profiles while still keeping the pad face stable for flat work on doors, drawer fronts, and case ends.

    The Granat abrasive is indicated as suitable for bare wood, paints, most modern paint systems, VOC clear coats, plastic materials, solid surface materials, acrylics, and composites, which lets a single disc type follow a project from raw stock through coated and synthetic components.

    The 100 grit rating sits in a range that can remove minor tool marks and level coatings while still leaving a surface that transitions well to finer steps, helping streamline grit sequences on cabinetry and interior components.

    Using This Festool Abrasive Disc In Practice

    Where This Granat Sanding Disc Performs Best

    The Granat abrasive is described as Festool's most long-lasting and highest performing abrasive and is well suited for nearly all applications, including bare wood, so it supports cabinet, millwork, and furniture sanding from initial surfacing through intermediate steps.

    Suitability for paints and most modern paint systems means the disc can be used to sand painted doors, frames, and trim elements, helping flatten brush or spray texture and prepare between coats with a controlled, even scratch.

    The specified compatibility with VOC clear coats allows the same 100 grit disc to level clear film on cabinetry or built-ins, tying in with finishing schedules that use low-VOC products without shifting to a separate abrasive line.

    The disc is also indicated for plastic materials, solid surface materials, acrylics, and composites, giving installers and fabricators one abrasive option that can move from wood to synthetic tops, display components, or fixture cladding in a single project.

    The 5 inch diameter with 9-hole dust pattern fits random-orbit style sanding where coverage and dust management are priorities, supporting controlled finishing on doors, panels, and solid surface runs.

    Why Granat Details Matter For Consistent Results

    The hardened aluminum oxide grain is designed for high performance, so the cutting edges stay effective across more passes, which helps hold the same scratch depth from part to part in production or retrofit work.

    The synthetic resin bond and closed coated structure keep grains anchored and densely spaced, which produces a uniform scratch pattern that sands out predictably when you step to finer grits in your finishing sequence.

    The paper backed construction balances flexibility and firmness, helping the pad follow slight surface variations while still maintaining a flat sanding plane that preserves edges and profiles on doors and trim.

    The hook and loop attachment supports repeated removal and re-installation of the same disc, so you can park a partially used 100 grit Granat disc and return to it later when a similar material and coating combination comes back into the workflow.

    The combination of 100 grit cut, long-lasting abrasive, and multi-material suitability means fewer abrasive types are needed on a cart, simplifying sanding setups across bare wood, coatings, and solid surface or composite elements in the same project.

    Common Questions About Festool Granat 5 Inch P100 Discs

    What does 100 grit mean for this Granat disc?

    Festool Granat 5 inch 100 grit sanding disc uses a medium abrasive grade, providing a balance between material removal and surface refinement that suits leveling and pre-finish sanding on many project stages.

    Which materials can this Granat sanding disc be used on?

    Festool Granat 5 inch 100 grit sanding disc is indicated for bare wood, paints, most modern paint systems, VOC clear coats, plastic materials, solid surface materials, acrylics, and composites.

    How does the 9-hole design help during sanding?

    The 9-hole pattern on the Festool Granat 5 inch 100 grit sanding disc aligns with matching pads to allow dust extraction through the disc, helping keep the abrasive surface clearer during use.

    What is the benefit of the hook and loop backing?

    The hook and loop backing on this Granat sanding disc allows quick attachment to and removal from compatible pads, supporting fast disc changes and reuse in an ongoing workflow.

    How does hardened aluminum oxide affect performance?

    Hardened aluminum oxide on the Festool Granat 5 inch 100 grit sanding disc provides a durable, sharp cutting surface that maintains effectiveness over extended sanding passes.

    Why is this Granat disc described as long-lasting?

    Festool identifies Granat as its most long-lasting and highest performing abrasive, meaning each disc is intended to deliver extended working life and consistent cutting behavior across many parts.

    Selecting This Granat Disc For Your Next Job

    The Festool Granat 5 inch 100 grit sanding disc, Manufacturer Part 578348, combines hardened aluminum oxide, synthetic resin bond, and closed coated construction on a hook and loop, 9-hole paper backed disc, giving installers and woodworkers a versatile option for bare wood, coatings, plastics, solid surface, acrylics, and composites.

    The medium 100 grit cut and described long-lasting Granat formulation support efficient leveling and refinement across many project stages. Choose this disc when a single abrasive line that can move from raw stock to finished synthetic components is important for your workflow.

    Diameter (in)
    5 in
    Diameter (mm)
    125 mm
    Attachment Type
    Hook and loop
    Grit
    100
    Hole Pattern
    9-hole
    Mineral
    Hardened aluminum oxide
    Product Type
    Sanding Discs
    Vacuum Type
    Vacuum
    Backing Weight
    Paper Backed
    Manufacturer Series
    Granat
    Supplier Pack Size
    1
    Sold In
    1
    Diameter (in)
    5 in
    Diameter (mm)
    125 mm
    Attachment Type
    Hook and loop
    Grit
    100
    Hole Pattern
    9-hole
    Mineral
    Hardened aluminum oxide
    Product Type
    Sanding Discs
    Vacuum Type
    Vacuum
    Backing Weight
    Paper Backed
    Manufacturer Series
    Granat
    Supplier Pack Size
    1
    Sold In
    1
    Festool
    12015022018080040320400240500601,000801001,2001,500
    $40.00/Box
    Festool Granat Hook & Loop Sanding Disc 5" 100 Grit Hardened Aluminum Oxide Paper Backed 9 Hole 50 Discs-Box 578348
    Item# FJ578348 / MFR Part # 578348
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