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SKU 7100216057
Legacy SKU 60455109771
UPC 00051131361805
Part Number 36180
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 0.789 LBS
Diameter 6 in 152.4 mm
Shipping Dimensions
Weight 3.431 lb
Length 9.2 in
Width 6.9 in
Height 7.3 in
Color Blue
Grit 320


  1. What is the hookit technology used in 3M™ Hookit™ Blue Abrasive Disc?

    Hookit technology refers to a system where there are hooks on the back of an abrasive disc. These hooks attach themselves tightly to the loop surface of a backing plate, making it easy and quick for you to change out sanding discs.

  2. Can I use 3M™ Hookit™ Blue Abrasive Disc 321U on any surface or substrate?

    Yes, this abrasive disc provides consistent results with good cut-rate on a variety of substrates like primer, paint, metal, wood among others. You will get exceptional value along with protection against sanding particles which improve your productivity.

  3. What quantity will I get if I order one case of 3M™ Hookit™ Blue Abrasive Discs?

    If you order one case of these discs (4 cartons per case), then you will receive 50 discs in each carton. This adds up to an incredible total of 200 abrasive discs ready for all your heavy-duty auto body refinishing work!

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 36180 are a cost-effective, high-performance upgrade for paint preparation and primer sanding jobs.

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 36180 deliver best-in-class cut, life, and efficiency across your entire shop.

Brochures, Catalogs & Data Sheets
  • Pdf   Brochures_blue abrasives pn re
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