3M 7000118261 Diamond Lapping Film 0.50 Micron Sheet

Product Description

The 3M 7000118261 is a diamond lapping film sheet designed for precision surface finishing on extremely hard materials. Precisely graded diamond abrasive particles are coated onto a dimensionally stable polyester film backing, producing a consistent, repeatable finish with each pass. At 0.50 micron, this sheet is suited for ultra-fine finishing and polishing stages where surface quality tolerances are tight. The sheet measures 4.50 inches by 5.50 inches. It is used by technicians and machinists requiring controlled, high-precision abrasion in optical, fiber optic, ceramic, carbide, and similar hard-material applications.

This lapping film sheet is intended for bench or fixture-mounted lapping operations where a flat, consistent abrasive surface is required. Common applications include polishing fiber optic connectors, lapping ceramic substrates, finishing carbide tooling, and refining hard coatings. The 0.50 micron grade places it at the fine end of the finishing range, making it appropriate as a final or near-final polishing step after coarser grades have been worked through in sequence.

Key Features

• 0.50 micron diamond abrasive grade for ultra-fine surface finishing
• Precisely graded diamond particles ensure consistent, repeatable results
• Polyester film backing provides dimensional stability during use
• Sheet size of 4.50 inches by 5.50 inches fits standard lapping fixtures and holders
• Suitable for extremely hard materials including ceramics, carbide, and optical components

Compatibility

Designed for use as a precision lapping and polishing sheet on extremely hard materials. Suitable for applications requiring ultra-fine abrasive finishing where controlled stock removal and surface quality are critical.

Installation Notes

This product is handled and used by machinists, optical technicians, and precision finishing specialists. Secure the sheet flat against a lapping plate or backing surface before use to prevent movement during operation. Ensure the workpiece and lapping surface are free of contamination from coarser abrasive particles before stepping down to this 0.50 micron grade, as cross-contamination will compromise finish quality. Follow applicable shop safety practices for handling abrasive materials.

Technical Specifications

• Abrasive Grade: 0.50 micron
• Sheet Length: 5.50 inches
• Sheet Width: 4.50 inches
• Backing Material: Polyester film
• Weight: 0.01 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 25
• UPC: 00051144859337

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000118261