3M 7000044831 Diamond Lapping Film Disc 5 Inch

Product Description

The 3M 7000044831 is a 5-inch diameter diamond lapping film disc engineered for precision surface finishing on extremely hard materials. It features precisely graded diamond particles coated onto a polyester film backing, producing a consistent, repeatable finish across each use. Available in multiple grades ranging from 0.10 to 30.0 micron, this disc delivers fast material removal combined with tight surface-finish control. It is used primarily by machinists, optical technicians, tool-and-die professionals, and precision fabricators who require flat surfaces and sharp edges on hard substrates.

This diamond lapping disc is suited for applications involving ceramics, carbide tooling, optical components, fiber optic connectors, and other hard-to-finish materials where conventional abrasives fall short. The polyester film backing maintains dimensional stability during use, supporting flatter results and more consistent grit contact across the entire disc surface. It is sold individually and available in disc, sheet, and roll formats across a range of micron grades to match specific finishing stages from stock removal through final polish.

Key Features

• Precisely graded diamond particles for consistent, repeatable surface finish
• Polyester film backing provides dimensional stability and support for flat results
• Available in grades from 0.10 to 30.0 micron for multi-stage finishing
• Fast cut rate increases throughput on hard materials
• Produces flatter surfaces and sharper edges compared to conventional abrasive films
• Available in disc, sheet, and roll formats

Compatibility

Designed for use as a lapping disc on hard materials including ceramics, carbide, optical glass, and fiber optic end-faces; compatible with standard 5-inch lapping fixtures and flat-lap machines that accept film-backed abrasive discs.

Installation Notes

Mount the disc onto a clean, flat lapping plate or fixture before use, ensuring full surface contact to avoid uneven wear. Technicians should inspect the disc surface prior to each use and discard if tearing, delamination, or contamination is present. Use appropriate personal protective equipment when working with fine abrasive particles. Follow facility safety procedures for disposal of used abrasive media.

Technical Specifications

• Diameter: 5 inches
• Abrasive Type: Diamond
• Backing Material: Polyester film
• Grade Range: 0.10 to 30.0 micron
• Unit of Measure: Each
• Weight: 0.01 pounds
• Package Length: 7.71 inches
• Package Width: 6.88 inches
• Package Height: 4.7 inches
• UPC: 00051111499597

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044831