3M 7000044854 Diamond Lapping Film 9.0 Micron Sheet

Product Description

The 3M 7000044854 is a diamond lapping film sheet designed for precision surface finishing on extremely hard materials. Precisely graded diamond abrasive particles are coated onto a dimensionally stable polyester film backing, producing a consistent, repeatable finish with every pass. This sheet measures 9 inches x 11 inches and carries a 9.0 micron grade, placing it in the mid-range of the available 0.10 to 30.0 micron product line. It is used by toolmakers, optical technicians, and precision machinists who require tight control over surface finish quality across ceramic, carbide, hardened steel, and similar substrates.

This lapping film is suited for bench lapping, hand lapping, and fixture-based finishing operations in tool and die shops, optical fabrication, fiber optic connector polishing, and precision instrument manufacturing. The polyester film backing allows the sheet to conform to flat lapping plates and backing pads without stretching or tearing during use. The 9.0 micron grade is commonly used as an intermediate or final finishing step when working down from coarser stock removal grits.

Key Features

• 9.0 micron precisely graded diamond abrasive for controlled material removal
• Polyester film backing provides dimensional stability and resistance to tearing
• Consistent particle distribution delivers repeatable surface finish results
• Compatible with wet or dry lapping techniques on hard substrates
• Standard 9 inches x 11 inches sheet format fits common lapping fixtures and backing plates

Compatibility

Designed for use on extremely hard materials including carbide, ceramic, hardened steel, and optical glass where conventional abrasives are ineffective. Suitable for use with flat lapping plates, hand lapping tools, and backing pads that accept standard sheet stock.

Installation Notes

This product is installed and used by precision machinists, toolmakers, and optical finishing technicians. Secure the sheet to a flat lapping plate or appropriate backing pad before use to prevent slippage. Ensure the workpiece and lapping surface are clean and free of contamination from coarser abrasive grades before switching to this film. Follow the manufacturer and shop safety guidelines for abrasive finishing operations, including appropriate eye and hand protection.

Technical Specifications

• Abrasive Grade: 9.0 micron
• Sheet Size: 9 inches x 11 inches
• Backing Material: Polyester film
• Abrasive Type: Diamond
• Weight: 0.02 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 10

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044854