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SKU 7100227734
Legacy SKU 60440403354
UPC 00638060774472
Product Number 366L

Precision, micron-graded, resin-bonded, polyester film backing. Aggressive cut with uniform finish. Load-resistant coating provides greater efficiency and longer product life. Use on plastic, fiberglass, wood, metal, solid-surface composites.

  • Aluminum oxide abrasive offers a fast cut, long life, and professional performance on many surfaces
  • Durable polyester film backing enables close-tolerances and consistent finish
  • Hookit™ hook and loop backing allows quick attachment and removal for multi-step finishing processes
  • Load-resistant coating prevents dust and debris from clogging the disc
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On it's way to you October 23  


Minimum Order 100 Items
Order Increment 100 Items
  High-Quality Surface Finishes
  Reduces Abrasive Costs
  Long Lasting Performance
  Fantastic Price
Product Dimensions
Imperial Metric
Weight 3.023 LBS
Diameter 11 in 279.4 mm
Shipping Dimensions
Weight 6.578 lb
Length 12.9 in
Width 13 in
Height 5.6 in
Maximum Speed 2,000 rpm
Grit Non Pertinent


  1. What is the difference between a Hookit™ Microfinishing Film Disc and other types of abrasive discs?

    The biggest advantage of 3M™ Hookit™ Microfinishing Film Discs is that they use hook-and-loop attachment, which makes them much easier to remove and replace than traditional adhesive-backed discs. With no wasted time cleaning adhesive residue off of your backing pad, you can get more work done in less time.

  2. Can I use these microfilm finishing discs on any type of material?

    These Type D Microfinishing Film Discs are specifically designed for smoothing out hard paint finishes, clear coats, as well as plastic parts and sheet metals. That said, it’s always best to test out different products on a small area before using them widely.

  3. Are there any special storage requirements for this product?

    If stored properly in a dry environment between 60°-80°F (16-27°C) with the original packaging sealed until ready-to-use date may last up to two years from date manufactured.

  4. How long does each disc typically last?

    The longevity will depend heavily upon many factors including what level grit being used (i.e. lighter grits tend to saturate faster), type/condition/or configuration of machine being used as well project/application being performed.

  5. Generally speaking under normal working conditions we expect each individual disk lasts approximately five minutes or longer if taken care properly.

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.
Product Description: 3M™ Hookit™ Microfinishing Film Disc 366L

The 3M™ Hookit™ Microfinishing Film Disc 366L is a high-quality abrasive disc designed for precision finishing applications. With a 60 Mic grit size and Type D attachment, this disc is perfect for achieving a smooth and consistent finish on a variety of surfaces. Measuring 11 inches in diameter and featuring a non-hole design (NH), it offers excellent durability and long-lasting performance.

One of the key features of the 3M™ Hookit™ Microfinishing Film Disc 366L is its unique die 1100F construction. This construction ensures that the disc maintains its shape and integrity even under high pressure and heat, making it ideal for demanding sanding and finishing tasks. Each carton contains 50 discs, providing ample supply for your projects.

The 3M™ Hookit™ Microfinishing Film Disc 366L is part of the 3M™ Hookit™ system, which allows for quick and easy disc changes. The hook-and-loop attachment system ensures a secure and reliable connection between the disc and the sanding tool, minimizing downtime and maximizing productivity. With its exceptional performance and ease of use, this disc is a must-have for professionals in the automotive, woodworking, and metalworking industries.

Key Features:
  • 60 Mic grit size and Type D attachment for precision finishing
  • 11 inches in diameter with a non-hole design (NH)
  • Die 1100F construction for durability under high pressure and heat
  • 50 discs per carton, providing ample supply
  • Compatible with the 3M™ Hookit™ system for quick and easy disc changes
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