3M 7000044870 Diamond Lapping Film 6.0 Micron Sheet

Product Description

The 3M 7000044870 is a diamond lapping film sheet engineered for precision surface finishing on extremely hard materials. Precisely graded diamond abrasive particles are coated onto a dimensionally stable polyester film substrate, producing a consistent cutting action across the full sheet surface. At 6.0 micron grade, this sheet is suited for intermediate lapping and polishing stages where tight surface finish tolerances are required. The 9 inches x 11 inches format fits standard lapping platens and hand-lapping fixtures. Machinists, tool and die technicians, optical fabricators, and precision instrument technicians use this film in production and maintenance finishing operations.

Diamond lapping film in the 6.0 micron grade is commonly used in precision grinding and polishing workflows on materials such as carbide, ceramics, hardened steel, sapphire, and optical glass. The polyester backing provides uniform thickness across the sheet, which helps maintain flatness during lapping. This film is appropriate for both wet and dry lapping applications depending on the workpiece material and the finish requirement. It is used in tool room, optical shop, and field service environments where conventional abrasives lack the hardness or consistency to achieve repeatable results on hard substrates.

Key Features

• 6.0 micron precisely graded diamond abrasive for consistent intermediate-stage lapping
• Polyester film backing maintains dimensional stability and uniform sheet thickness
• 9 inches x 11 inches sheet size fits standard lapping platens and hand fixtures
• Suitable for extremely hard materials including carbide, ceramics, and optical substrates
• Repeatable surface finish results across multiple sheets within the same micron grade

Compatibility

Designed as a standard lapping film sheet for use with flat lapping platens, fixtures, and hand-lapping blocks in precision surface finishing applications on hard and superhard materials.

Installation Notes

Secure the lapping film flat against the platen or backing plate before use to prevent wrinkles that can affect surface finish uniformity. Ensure the workpiece and tooling are clean and free of contamination from coarser abrasive grades before switching to this film. Follow the equipment manufacturer guidelines and applicable shop safety procedures when operating lapping machines or precision finishing equipment.

Technical Specifications

• Abrasive Grade: 6.0 micron
• Sheet Dimensions: 9 inches x 11 inches
• Abrasive Type: Diamond
• Backing Material: Polyester film
• Weight: 0.05 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 10
• UPC: 00051111501443

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044870