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SKU 7000120347
Legacy SKU 60650012796
UPC 00051131005204
Part Number 00520
Product Number 255U

3M™ Green Corps™ Hookit™ Abrasive Disc 255U combines features for smooth, even sanding on tough surfaces. Grade 24 - 80 ceramic and aluminum oxide blend abrasive is resin bonded to durable E weight paper backing, with open coat construction that reduces loading even on fresh filler. These discs are ideal for shaping plastic filler and putty, paint removal and scratch refinement on bare metal.

  • Ideal for shaping filler and stripping paint to metal
  • Ceramic aluminum oxide blend abrasive offers excellent cut rate and life
  • Built on E weight paper backing for added durability
  • Open coat construction provides a more aggressive cut and minimizes dust clogging
  • Hookit™ hook-and-loop attachment makes disc changes fast and easy
  • Several versions feature 7- or 8-hole pattern for improved dust evacuation
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On it's way to you October 11   


Minimum Order 5 Cartons
Order Increment 5 Cartons
  Superior Cut Rate
  Custom Fit
  Can Use on Many Surfaces
Product Dimensions
Imperial Metric
Weight 1.28 LBS
Diameter 8 in 203.2 mm
Shipping Dimensions
Weight 6.9 lb
Length 11.3 in
Width 8.9 in
Height 9.3 in
Color Green
Grit 100


  1. What type of abrasive material is used in this Hookit disc?

    The 3M™ Green Corps™ Hookit™ Disc, 00520 uses aluminum oxide as its abrasive material.

  2. Is this Hookit disc suitable for use on my car's paintwork?

    While it may be possible to use the 3M™ Green Corps™ Hookit™ Disc, 00520 on your car's paintwork, we recommend checking with a professional before doing so. It is designed primarily for sanding and featheredging old paint or primer.

  3. Can I order a smaller quantity than the standard case of 5 cartons?

    Yes, you can order individual cartons if needed. Our goal is to make sure that our customers are able to purchase the exact amount they need without any wastage or unnecessary expense.

  4. ​​​​​: Do these discs come with precut holes?

    No, the hook-and-loop design allows easy reuse and attachment but doesn't include pre-cut holes because some users require solid-face construction. However, the backing does have dust evacuation channels that minimize loading.

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.
A Tough Disc for Tough Surfaces

Built to withstand the most demanding auto body sanding jobs, the 3M™ Green Corps™ Hookit™ Abrasive Disc 255U is designed with heat-resistant resin bonding. The Hookit™ attachment system allows operators to quickly change out discs during multi-step sanding processes.

Superior Dust Resistance

The open coat construction of the abrasive grains in the 3M™ Green Corps™ Hookit™ Abrasive Disc 255U allows dust and debris to collect in the spaces between the grains, preventing the disc from loading. This feature also provides a more aggressive cut than a comparable closed coat abrasive of the same grade, resulting in faster results. Some versions of this disc feature a 7- or 8-hole pattern that helps evacuate dust from the work surface, significantly increasing disc life and maximizing cut-rate.

Blended Grain for Better Cut

The 3M™ Ceramic Abrasive Grain is a ceramic mineral designed using a 3M process to enhance the toughness and hardness of the grain. The 3M™ Green Corps™ Hookit™ 255U abrasive discs feature aluminum oxide blended with 3M™ Ceramic Abrasive Grain for increased performance, making it one of the most durable and long-lasting abrasives available. Ceramic abrasives are engineered to cut fast and handle intense heat and stress, making them perfect for moderate to heavy stock removal, sanding, and finishing applications. The ceramic aluminum oxide blend surpasses aluminum oxide abrasives in cut-rate and durability, making this product an excellent choice for sanding metal, plastic, and fiberglass substrates, as well as finishing applications.

About the Hookit™ Attachment System

3M™ Hookit™ discs are ideal for workspaces where adhesive-backed discs may become contaminated by dust, dirt, or flying debris. They are often used in applications where a 3M™ Stikit™ disc may be too aggressive, as Hookit™ discs tend to leave finer finishes than adhesive-backed discs. Hookit™ sanding discs conveniently and firmly attach to a hook-and-loop backup disc pad (sold separately) on a random orbital sander, can be removed cleanly and easily, and be used again and again for the extent of the abrasive life.

Durable Through and Through

The Green Corps™ Hookit™ Abrasive Disc 255U is built to last, from the grain to the backing to the bonding to the disc pad attachment. This makes it perfect for tough auto body sanding projects, allowing for top-quality sanding using fewer discs. This product is an excellent choice for auto body professionals looking to get the most out of their operations.

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Lead times are estimates and may vary based on our suppliers' product availability.