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  6. 3M™ Hookit™ Diamond Microfinishing Film Disc 675L

3M™ Hookit™ Diamond Microfinishing Film Disc 675L

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Micron-graded diamond mineral delivers a range of surface finishes and stock removal

Polyester film backing is durable, and can be run with coolant

Hook and loop attachment maximizes productivity

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Safety Data Sheet (PDF, 0B)

Details

Highlights
  • Micron-graded diamond mineral delivers a range of surface finishes and stock removal
  • Polyester film backing is durable, and can be run with coolant
  • Hook and loop attachment maximizes productivity
  • Finish reduction on a variety of hard materials

Designed with a durable polyester film backing and diamond mineral, 3M™ Hookit Diamond Microfinishing Film Disc 675L provides fast finish reduction on hard materials including thermal spray coatings, ceramics, carbides, chilled iron, granite and others. A hook-and-loop attachment system makes attachment swift and simple.

High-Performance Abrasives for High-Performance Parts
We engineered the 3M™ Hookit™ Diamond Microfinishing Film Disc 675L with micron-graded diamonds on a 5 and 6 mil polyester film backing to be effective on hard-to-grind materials.

The automotive and aerospace industries in particular are embracing these materials and driving the demand for greater manufacturing efficiencies and increasingly critical tolerances.

3M™ Hookit™ Diamond Microfinishing Film Discs 675L is available in grades 125 and 74 micron to refine surfaces and 45, 30, 20 and 9 micron for finer finishes. We offer the disc in a range of grades, so operators can choose a disc that's tailored to their unique project needs.

Polyester-Backed Diamond Abrasive May Be Run Wet or Dry
The uniform caliper of this polyester film backing supports both uniform finishes and aggressive cut rates. It is tear-resistant and non-compressible.

The polyester backing is water-resistant, as well, so the disc may be run with coolant if desired. Coolant is a desirable component for diamond polishing, since it efficiently cools both the work and the abrasive. Adding a lubricant like water can help keep this disc running cool and extend abrasive life.

3M™ Microfinishing Films
Product Mineral Backing Caliper
(0.001")
Backside Grades (Microns)
9 15 20 30 40 45 50 60 74 80 100 125
372L Aluminum
Oxide
5 Type S      
372L Type 2*
(colored)
Aluminum
Oxide
5 Type S          
373L Aluminum
Oxide
5 Type Q      
373L Type 2*
(colored)
Aluminum
Oxide
5 Type Q          
382L Type 2
(colored)
Aluminum
Oxide
6 Type S              
362L Aluminum
Oxide
3 Type S          
272L** Aluminum
Oxide
5 Type S      
472L Silicon
Carbide
5 Type S              
675L Diamond 5 Type S                
Diamond 6 Type S                    

*Suggest to specify the 372L or 373L type 2 (colored) film whenever possible to assist with Error-proofing.
**European Lead Product. Plus wide rolls and belts globally.

Hookit attachment system provides fast disc change-out for multi-step finishing processes.
Hookit attachment system provides fast disc change-out for multi-step finishing processes
Focus On the Task, Not the Tooling, With Hookit
Our 3M Hookit™ hook-and-loop attachment system allows the operator to focus more on the task and less on tooling. 3M™ Hookit™ products are manufactured with loop material that attaches to a backup pad (sold separately), where tiny hooks firmly engage the loops.

Attachment is quick, easy and secure during use. Sanding, finishing and surface conditioning products with the hook-and-loop attachment and removal system are efficient for working through multi-step finishing processes. Abrasive products with a Hookit attachments can be used again and again for the life of the abrasive, unlike pressure-sensitive adhesive attachments.

Typical properties

Resources

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.