3M 7010307691 Diamond Lapping Film 0.50 Micron Sheet

Product Description

The 3M 7010307691 is a precision diamond lapping film sheet designed for finishing and polishing extremely hard materials to tight surface tolerances. Precisely graded diamond abrasive particles are coated onto a stable polyester film substrate, producing a consistent, repeatable finish pass after pass. Each sheet measures 5.50 inches x 5.50 inches and carries a 0.50 micron abrasive grade, making it suited for ultra-fine finishing stages where surface roughness control is critical. This product is used by technicians and craftsmen working on fiber optic connectors, carbide tooling, ceramics, and other hard substrates that require controlled micro-finishing.

This lapping film is applied in applications where conventional abrasive media cannot achieve the required surface finish. Common use cases include polishing fiber optic ferrules, lapping precision optical components, finishing cutting tool edges, and final-stage surface preparation on hardened steel or ceramic parts. The 0.50 micron grade positions this sheet at the fine end of the finishing sequence, typically used after coarser micron grades have been applied. Both production environments and bench-level repair or fabrication settings use this format.

Key Features

• Precisely graded 0.50 micron diamond abrasive particles for ultra-fine surface finishing
• Polyester film backing provides a stable, dimensionally consistent substrate
• 5.50 inch x 5.50 inch sheet format fits standard lapping fixtures and hand-lapping setups
• Delivers repeatable finish results on extremely hard materials including carbide, ceramics, and hardened steel
• Part of a multi-grade system available from 0.10 to 30.0 micron for full finishing sequences

Compatibility

Designed for use on extremely hard materials including carbide, ceramics, optical glass, and hardened metal surfaces requiring ultra-fine abrasive finishing. Suitable for hand lapping, fixture-based lapping, and polishing operations where controlled micron-grade abrasive media is required.

Installation Notes

This lapping film is used by precision technicians, tool and die makers, and fiber optic technicians in both shop and field settings. Secure the sheet flat against a lapping plate or backing surface before use to prevent wrinkling or uneven abrasive contact. Follow the manufacturer sequence from coarser to finer micron grades to achieve the target surface finish efficiently. Clean the workpiece between grade changes to prevent coarser particles from contaminating the finer lapping stage.

Technical Specifications

• Abrasive Grade: 0.50 micron
• Sheet Dimensions: 5.50 inches x 5.50 inches
• Abrasive Type: Diamond
• Backing Material: Polyester film
• Weight: 0.01 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 25
• UPC: 00051111699355

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010307691