3M 7000044976 Diamond Microfinishing Film Roll 45 Micron

Product Description

The 3M 7000044976 is a diamond microfinishing film roll engineered for superfinishing and rapid finish reduction on hard, difficult-to-machine materials. Diamond mineral is bonded to a durable polyester film backing, delivering consistent cutting action and surface refinement across a range of demanding substrates. The roll measures 4 inches wide by 50 feet long with a 3-inch core, and the abrasive grade is 45 micron. This product is used by skilled machinists, toolroom technicians, and surface finishing specialists who require tight tolerances and repeatable results on hard surfaces.

This microfinishing film roll is suited for superfinishing applications on hard materials including thermal spray coatings, ceramics, carbides, chilled iron, and granite. It is appropriate for use in precision grinding, lapping, and honing operations where conventional abrasives fail to achieve the required surface finish or cut rate. The film backing provides dimensional stability, making it compatible with automated and semi-automated finishing equipment as well as hand-guided applications on flat and contoured workpieces.

Key Features

• Diamond mineral abrasive bonded to polyester film backing for consistent cut and long service life
• 45 micron abrasive grade for aggressive material removal combined with controlled surface finishing
• 4 inches x 50 ft roll with 3-inch core fits standard finishing equipment and roll holders
• Effective on thermal spray coatings, ceramics, carbides, chilled iron, and granite
• Polyester film backing provides dimensional stability for flat and contoured surface work
• Designed for superfinishing and fast finish reduction in precision machining environments

Compatibility

Designed for use on hard materials including thermal spray coatings, ceramics, carbides, chilled iron, and granite. Suitable for use with standard 3-inch core roll finishing equipment and hand-guided superfinishing setups.

Installation Notes

This product is installed and used by machinists and surface finishing technicians familiar with abrasive film systems. Ensure the workpiece and equipment are properly secured before beginning any finishing operation. Follow equipment manufacturer guidelines for roll tensioning, feed rate, and coolant use when applicable. Inspect the film roll for damage before loading and replace when cut rate or surface finish quality degrades.

Technical Specifications

• Abrasive Mineral: Diamond
• Backing Material: Polyester film
• Abrasive Grade: 45 micron
• Roll Width: 4 inches
• Roll Length: 50 ft
• Core Size: 3 inches
• Unit of Measure: Roll
• UPC: 50051141205729

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044976