3M 7000044857 Diamond Lapping Film Disc 5 Inch 0.50 Micron

Product Description

The 3M 7000044857 is a 5-inch diameter diamond lapping film disc engineered for precision surface finishing and flat lapping applications. It features a higher diamond concentration and a stronger resin bond compared to standard diamond lapping film, delivering increased durability and a faster cut rate. The result is a consistent, flat finish without edge rounding. At 0.50 micron grade, this disc is suited for ultra-fine finishing passes where surface quality is critical. Machinists, optical technicians, and precision grinding specialists working on tight-tolerance components are the primary users of this product.

This disc is used in flat lapping, fiber optic connector polishing, ceramic finishing, and other precision abrasive applications where a controlled, repeatable surface finish is required. The 5-inch diameter fits standard lapping plates and film-based polishing fixtures common in optical, semiconductor, and precision mechanical shops. Available in grades ranging from 0.50 to 9.0 micron, the 662XW series allows technicians to step through multiple finishing stages with a single product family. Each disc is sold individually as a single unit.

Key Features

• Higher diamond concentration for increased cut rate over standard diamond lapping film
• Stronger resin bond improves durability and extends abrasive life
• Flat surface finish with no edge rounding
• Long abrasive life reduces the frequency of disc changes and increases throughput
• 5-inch diameter fits standard lapping plates and polishing fixtures
• Part of a micron-grade series available from 0.50 to 9.0 micron for multi-stage finishing

Compatibility

Designed for use with standard 5-inch flat lapping plates and film polishing fixtures. Part of the 3M 662XW Diamond Lapping Film series, which is available in discs, rolls, and sheets across multiple micron grades.

Installation Notes

Secure the disc firmly to the lapping plate surface before use to prevent slippage during operation. Ensure the workpiece and fixture are clean and free of contamination that could scratch or compromise the finish. Follow all applicable shop safety procedures when operating lapping or polishing equipment, including the use of appropriate eye and hand protection. Disc replacement should be performed with equipment fully stopped and de-energized.

Technical Specifications

• Diameter: 5 inches
• Grade: 0.50 micron
• Abrasive Type: Diamond
• Product Series: 662XW
• Unit of Measure: Each
• Package Weight: 0.01 pounds
• Package Length: 7.71 inches
• Package Width: 6.88 inches
• Package Height: 4.7 inches
• UPC: 00051111500569

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044857