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  • 3M™ Hookit™ Blue Abrasive Discs 321U
  • 3M™ Hookit™ Blue Abrasive Discs 321U

    56  Products
    • A best-in-class abrasive for a variety of applications
    • Engineered ceramic mineral blend is balanced for maximum abrasive performance in its class
    • Discs available in mutli-hole pattern for excellent dust extraction or in no-hole format
    • Anti-loading coating prevents dust and debris from clogging the cutting surface
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    Overall Diameter (Imperial)
    Overall_Diameter_Imperial
    Grit
    Grit
    56 Products Available
    Available options:
     Overall Diameter (Imperial) and Grit
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    Specifications
    Attribute Name
    Value
    Abrasive Material
    Ceramic Aluminum Oxide
    Application
    Beveling & Back Gouging, Clear Coat Blending, Clearcoat, Coarse Sanding, E-Coat Sanding, Featheredging, Filler Shaping, Fine Finishing, General Purpose Sanding, Intermediate Sanding, Machine Sanding, Multi-Purpose Sanding, Paint Preparation, Paint Removal, Paint Sanding, Paint Stripping, Primer Sanding, Random Orbital Sanding, Refining Scratches, Repairing Large Area Paint Defects, Sanding, Sanding Filler, Surface Preparation, Surface Preparation for Painting, Weld Grinding
    Attachment Type
    Hook & Loop
    Backing Material
    Paper
    Backing Weight
    C Weight
    Brand
    3M™, Hookit™
    Case Quantity
    4 Boxes per Case, 4 Cartons per Case
    Converted Form
    Disc
    Form Type
    Clean Sanding
    Grit
    120, 150, 180, 220, 240, 320, 40, 400, 500, 600, 80, 800
    Number per Inner
    50 Discs Per Carton, 50 per Carton
    Overall Diameter (Imperial)
    3 in, 5 in, 6 in
    Overall Diameter (Metric)
    127 mm, 152.4 mm, 76.2 mm
    Packaged Form
    Boxed
    Performance Level
    Better
    Product Color
    Blue
    Product Form
    Disc
    Sanding Method
    Hand, Machine
    Vacuum Support
    No, Yes
    Wet or Dry
    Dry
    Product Details
    • A best-in-class abrasive for a variety of applications
    • Engineered ceramic mineral blend is balanced for maximum abrasive performance in its class
    • Discs available in mutli-hole pattern for excellent dust extraction or in no-hole format
    • Anti-loading coating prevents dust and debris from clogging the cutting surface
    • Upgraded resins improve durability and finish

    Our 3M™ Hookit™ Blue Abrasive Disc 321U delivers best-in-class performance at every stage of paint prep and coatings removal. Premium aluminum oxide mineral abrasive is blended with ceramic grain for a full range of sanding applications. Our multi-hole discs feature a specially-designed pattern that reduces loading, extends disc life and aligns with most backup pads. Hookit™ attachment makes disc changes easy.

    Best-in-Class Performance in Every Grade
    Part of our full line of 3M™ Blue Abrasives, the 3M™ Hookit™ Blue Abrasive Disc is engineered for best-in-class cut, life and efficiency across your entire shop. The disc features a tough ceramic blended with premium aluminum oxide mineral for just the right balance. 3M™ Blue Abrasives deliver consistently excellent results in a minimum amount of time, on jobs ranging from aggressive paint removal and fresh filler sanding to blend preparation and sanding primer. Discs are available in a wide range of sizes and grades.

    Dust Extraction and Anti-Loading Features Enhance Performance and Life
    The multi-hole pattern discs are specially designed to capture dust and keep it away from the abrasive surface. This specially-designed hole pattern reduces loading and extracts dust more efficiently compared to standard 6- or 7-hole disc configurations. It includes alignment guides across the disc, making it fast and easy to align with nearly any backup pad. The mineral blend on the 3M™ Hookit™ Blue Abrasive Disc is bonded using upgraded resins for enhanced durability. An anti-loading coating helps keep dust from gathering between the abrasive grains for a faster cut and for consistent performance throughout the life of the disc.

    Our Hookit™ Attachment System
    The Hookit™ attachment system has a hook-and-loop feature which makes disc attachment, removal, and re-attachment clean and easy. It also facilitates use and re-use of the disc for maximum product life. Hookit™ discs have a brushed nylon loop backing of the type most commonly used in everyday hook-and-loop applications. 3M™ Hookit™ disc pads (sold separately) feature hooks which grip the brushed nylon loop backing. It’s simple: just attach the disc and start sanding. The disc removes just as cleanly and easily. The Hookit™ system is designed for work spaces and applications where adhesive backed discs may become contaminated by dust, dirt, or debris.

    Better Science for Better Sanding from 3M
    Our 3M™ Blue Abrasives family is designed as a cost-effective, high-performance upgrade for any sanding application in coatings removal and paint preparation. From its balanced, engineered mineral blend to its multi-hole pattern option for dust extraction, our 3M™ Hookit™ Blue Abrasive Disc is another way that 3M applies science to deliver best-in-class performance for professionals.

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