3M 7000044872 Diamond Lapping Film Disc 4.25 Inch

Product Description

The 3M 7000044872 is a diamond lapping film disc from the 662XW series, designed for precision surface finishing and polishing applications. This disc features a higher diamond concentration and a stronger resin bond compared to standard diamond lapping film, resulting in greater durability and a faster cut rate. Measuring 4.25 inches in diameter, it delivers a flat, consistent surface finish without rounding edges. Technicians and machinists working on tight-tolerance components rely on this disc for repeatable, high-quality results across multiple finishing stages.

This diamond lapping film disc is suited for precision lapping and polishing of optical components, fiber optic connectors, ceramic ferrules, hard metals, and other tight-tolerance surfaces. It is commonly used in industrial, manufacturing, and telecommunications maintenance environments where surface finish quality is critical. The 662XW series is available in multiple micron grades, including 0.50, 1.0, 1.50, 3.0, 6.0, and 9.0 micron, allowing users to select the appropriate grit progression for their finishing process.

Key Features

• Higher diamond concentration for increased cut rate over standard diamond lapping film
• Stronger resin bond provides added durability and extended abrasive life
• Flat surface contact minimizes rounding on precision components
• Long abrasive life reduces disc change frequency and increases throughput
• Available in discs, rolls, and sheets for flexible application setups
• Multiple micron grades available: 0.50, 1.0, 1.50, 3.0, 6.0, and 9.0 micron

Compatibility

Designed for use with standard lapping fixtures and holders that accept 4.25-inch diameter lapping film discs in precision finishing and polishing operations.

Installation Notes

This disc is installed and used by machinists, optical technicians, and fiber optic technicians performing precision surface finishing. Ensure the backing plate or lapping fixture is clean and free of debris before mounting the disc. Follow the manufacturer-recommended micron grade progression from coarse to fine for best surface finish results. Inspect the disc for wear regularly and replace when cut rate or surface finish quality declines.

Technical Specifications

• Diameter: 4.25 inches
• Series: 662XW
• Available Micron Grades: 0.50, 1.0, 1.50, 3.0, 6.0, 9.0 micron
• Weight: 0.01 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 25
• UPC: 00051111501481

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044872