Upcoming Light Brigade Training Courses in New Bedford include: Fiber Optics 1-2-3, Fiber Optics for Data Centers, Splicing Deep Dive and more. View More Details.

!! We are experiencing a phone outage at Fiber Optic Center today, June 2, 2026 !!
Please send any requests via email and we will respond as soon as possible.

3M™ 661X Diamond Lapping Film Sheet - 6 x 6 inch 30µm (micron)

D30-661X-663N

3M 30um 661X Diamond Lapping Film, Green 6" x 6" Sheet with 3mil Backing. Pricing per Sheet.
The 3M™ 661X Diamond Lapping Film is an abrasive film used for polishing the end-face of fiber optic connectors. Its purpose is to shape the fiber geometries, such as restoring or forming the Radius of Curvature and Apex Offset of the ferrule. Diamond film exhibits an extended lifespan compared to conventional films, and its high-cut rate enables more efficient material removal for a faster polishing process.

The 6" x 6" sheet is used for applications in fiber optic connector processing, flat lapping, and superfinishing.

Lapping Film Features:
  • Film Color: Green
  • Grit Size: 30 micron (30µm)
  • Base Film Material: Polyester
  • Base Film Thickness: 3 mil (75 µm)
  • Quantity: Single Sheet
  • Non-PSA backed film
  • Bonding Resins: Standard resin
Product Life: 5 years from the date of manufacture when stored in the original packaging materials and stored at 10°C - 30° C (50°F - 86°F) and 30-60% relative humidity.

Product Comparison Table(s)

Datasheet

Technical Support

A purchase from Fiber Optic Center includes access to a team of experienced technical experts with hands-on industry experience. From on-site support and training to troubleshooting, process development, yield improvement, evaluations, and calibrations, we provide the practical guidance and expertise needed to help you maximize productivity and achieve exceptional results. Click here for more details on the technical advantage of Fiber Optic Center.

Fiber Optic Center

4.9 71 Google reviews

Represents overall Google Reviews of Fiber Optic Center, Inc.