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    Abrasive Belts
    1. Home
    2. Abrasives
    3. Abrasive Belts
    Item # MM340D60X-3X21 • Mfr # 00051144274987

    3M 340D 3" x 21" Sanding Belt 60 Grit Aluminum Oxide X-Weight Cloth Bulk/10 51144274987

    • Technical data, 00051144274987
      Technical data, 00051144274987
    • Safety data, 00051144274987
      Safety data, 00051144274987

    Description

    3M 340D 60 Grit Sanding Belt For Portable Use

    3M 340D 60 grit sanding belt is a general purpose portable sanding belt that uses aluminum oxide abrasive on an X-weight cloth backing. This 3 inch x 21 inch size works on portable belt sanders for everyday sanding jobs where a belt-style abrasive is needed. The 340D version is an open coat belt, so abrasive grains are spaced to promote a good cut with less loading when sanding. That open coat construction lets dust clear more easily, which helps the belt maintain its cutting action across more of the work. As a general purpose abrasive belt in the 3M 340D and 341D family, this 60 grit option fits tasks that call for a relatively coarse cut on wood or similar materials in industrial and occupational settings.

    Key 3M 340D Belt Details For Daily Work

    • The belt uses aluminum oxide abrasive on an X-weight cloth backing, providing a durable abrasive surface that supports consistent sanding passes on portable sanders.
    • The 340D belt is described as an open coat belt that provides a good cut with less loading, so dust has more space to clear from between grains during sanding.
    • This product is part of the 3M 340D and 341D general purpose portable sanding belt family, aligning this belt with everyday use tasks in abrasive belt applications.
    • The belt size is 3 inch x 21 inch, matching common portable belt sander dimensions for straightforward belt fitment on tools designed for this length and width.
    • The 340D version is available in 50 to 120 grit, and this specific belt uses 60 grit, which offers a relatively coarse cut suitable where material removal is prioritized.

    Portable Belt Installation And Fit Details

    This 3M 340D portable sanding belt is sized at 3 inch x 21 inch, so it is designed for use on portable belt sanders built around that belt length and width. The X-weight cloth backing supports the tension typical of portable belt sander tracking systems, helping the belt stay stable as it runs over contact wheels and platen areas. Because the belt is a general purpose portable sanding belt in the 340D and 341D family, its construction is oriented toward the demands of handheld belt sanding workflows in industrial and occupational environments.

    How This 3M 340D Belt Performs In Use

    General Purpose Sanding Belt For Portable Sanders

    This 3M 340D portable sanding belt is identified as a general purpose portable sanding belt, which positions it for a range of everyday sanding tasks where a belt sander is used. The aluminum oxide abrasive is applied to an X-weight cloth backing, so the abrasive surface is bonded to a strong cloth that supports repeated passes under belt sander tension. The belt is part of the 3M 340D and 341D line of abrasive belts, described as excellent all-around abrasive belts for everyday use, which connects this 60 grit version to routine sanding operations in industrial and occupational settings. With a 3 inch x 21 inch size, the belt works with portable sanding tools that accept this dimension, aligning its construction with common jobsite and shop belt sanders designed for that format.

    Open Coat Construction And Grit Range Impact Results

    The 340D sanding belt is described as an open coat belt that provides a good cut with less loading, so its abrasive grain pattern is intentionally spaced to help keep debris from compacting between grains. That spacing promotes a more continuous cutting action as the belt moves across the work, which is valuable when sanding materials that tend to generate dust or swarf that might otherwise pack onto the belt. The 340D belt line is available in 50 to 120 grit, and this belt uses 60 grit, placing it toward the coarse end of that range for more aggressive material removal compared with finer options. The combination of aluminum oxide abrasive, X-weight cloth backing, and open coat construction positions this belt as an excellent all-around abrasive belt for everyday use where portable sanding is part of the workflow.

    Common Installer Questions About This 3M Sanding Belt

    What type of abrasive does the 3M 340D belt use?

    The 3M 340D portable sanding belt uses aluminum oxide abrasive on an X-weight cloth backing, which provides a strong abrasive surface suitable for general purpose belt sanding.

    How does the open coat design affect sanding performance?

    The 3M 340D open coat belt spaces abrasive grains to provide a good cut with less loading, so dust clears more readily and the belt stays effective during extended sanding runs.

    What is the size of this 3M 340D 60 grit belt?

    This 3M 340D belt measures 3 inch x 21 inch, matching portable belt sanders that are designed around that belt width and length for proper tracking and support.

    Where does this belt fit within the 3M 340D grit range?

    The 3M 340D line is available in 50 to 120 grit, and this belt uses 60 grit, providing a relatively coarse cut suited to material removal before finer steps.

    How is this 340D belt positioned for everyday sanding?

    The 3M 340D and 341D belts are described as excellent all-around abrasive belts for everyday use, so this 340D 60 grit version aligns with routine sanding tasks.

    Is this sanding belt intended for industrial or consumer use?

    This 3M industrial and occupational product is intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use, not for consumer sale or use.

    Selecting This Belt For Portable Sanding Jobs

    The 3M 340D 60 grit 3 inch x 21 inch portable sanding belt combines aluminum oxide abrasive, an X-weight cloth backing, and open coat construction to support everyday belt sanding tasks. Its role as an excellent all-around abrasive belt for everyday use connects directly to workflows where general purpose material removal is required. For industrial and occupational users who rely on portable belt sanders, this specific 60 grit 340D belt aligns with jobs that benefit from a good cut with less loading in a familiar 3 inch x 21 inch belt format.

    Catalog
    Q-31
    Grit
    60
    Length (in)
    21 in
    Width (in)
    3 in
    Backing Weight
    X-weight, Cloth
    Product Type
    Sanding Belts, Portable
    Manufacturer Series
    340D
    Mineral
    Aluminum oxide
    Supplier Pack Size
    50
    Sold In
    10
    Catalog
    Q-31
    Grit
    60
    Length (in)
    21 in
    Width (in)
    3 in
    Backing Weight
    X-weight, Cloth
    Product Type
    Sanding Belts, Portable
    Manufacturer Series
    340D
    Mineral
    Aluminum oxide
    Supplier Pack Size
    50
    Sold In
    10
    0Cart
    0Cart
    506080100120
    3M
    $106.00/10 Belt
    $10.60 /Belt
    50+ items
    $8.89 / Belt
    3M 340D 3" x 21" Sanding Belt 60 Grit Aluminum Oxide X-Weight Cloth Bulk/10 51144274987
    Item# MM340D60X-3X21 / MFR Part # 00051144274987
    Belt
    Belt
    In Stock

    Sold In: 10 Belt

    Belt

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    Unit Price
    Catalog
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    Mfr# 00051144274635
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    Mfr# 7100231078
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