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SKU 7100091341
Legacy SKU UU004900823
UPC 00051131361423
Part Number 36142
Product Number 321U

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

  • 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
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On it's way to you October 11   


Minimum Order 4 Cartons
Order Increment 4 Cartons
  Superior Cut Rate
  Custom Fit
  Can Use on Many Surfaces
Product Dimensions
Imperial Metric
Weight 0.328 LBS
Diameter 3 in 76.2 mm
Shipping Dimensions
Weight 1.476 lb
Length 6.9 in
Width 6.2 in
Height 3.9 in
Color Blue
Grit 80


  1. What is the 3M™ Hookit™ Blue Abrasive Disc Multi-hole, 36142?

    The 3M™ Hookit™ Blue Abrasive Disc Multi-hole, 36142 is a type of abrasive disc used for sanding and polishing surfaces.

  2. What size are the discs in this product?

    The discs in this product are 3 inches in size.

  3. How many discs come in one carton of the 3M™ Hookit™ Blue Abrasive Disc Multi-hole, 36142?

    There are a total of 50 abrasive discs per carton of the product.

  4. What's included if I buy an entire case of these abrasives?

    If you purchase a full case of the 3M™ Hookit™ Blue Abrasive Disc Multi-hole, 36142, there will be four boxes that each contain five smaller cartons with fifty disks for a total count (in one box) equaling two-hundred-and-fifty.

For industrial/occupational use only. Not for consumer sale or use.
3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.

3M™ Hookit™ Blue Abrasive Discs 36142 are a cost-effective, high-performance upgrade for coarse-grade sanding jobs in collision repair and other industrial work.

The multi-hole pattern provides excellent dust extraction to help reduce loading and extend disc life. Additionally, the universal design aligns with most sanders and backup pads for durable, long-lasting use.

The Hookit™ attachment system allows for quick disc changes with its hook-and-loop feature. This feature makes disc attachment, removal, and re-attachment clean and easy. The engineered ceramic mineral blend delivers strong abrasive performance in its class, and the anti-loading coating helps keep dust from gathering between the abrasive grains for a faster precision cut.

Overall, 3M™ Hookit™ Blue Abrasive Discs 36142 deliver best-in-class cut, life, and efficiency across your entire shop.

Brochures, Catalogs & Data Sheets
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