3M 7000044975 Diamond Microfinishing Film Roll 30 Micron

Product Description

The 3M 7000044975 is a diamond microfinishing film roll designed for superfinishing and fast finish reduction on hard, difficult-to-machine materials. Diamond mineral is bonded to a durable polyester film backing, providing consistent cutting action and long service life across demanding applications. The roll measures 4 inches wide by 50 feet long with a 3-inch core, and the abrasive grade is 30 micron. This product is used by machinists, toolroom technicians, and precision grinding specialists who require repeatable surface finish results on hard substrates.

This microfinishing film roll is suited for superfinishing operations in precision manufacturing and industrial maintenance environments. It performs on hard materials including thermal spray coatings, ceramics, carbides, chilled iron, and granite. The 30 micron grade positions it for fast finish reduction where a consistent, controlled surface finish is required. It is commonly used on lapping fixtures, CNC superfinishing equipment, and manual film finishing setups in both production and toolroom settings.

Key Features

• Diamond mineral abrasive bonded to polyester film backing for durability and consistent cut
• 30 micron abrasive grade suited for fast finish reduction and superfinishing
• 4 inches wide by 50 feet long roll with 3-inch core for compatibility with standard film finishing equipment
• Effective on hard materials including ceramics, carbides, thermal spray coatings, chilled iron, and granite
• Polyester film backing resists tearing and maintains dimensional stability during use

Compatibility

Designed as an OEM-style abrasive film roll for use on standard film finishing and superfinishing equipment that accepts 4-inch wide rolls with a 3-inch core.

Installation Notes

Loading and threading abrasive film rolls should be performed by qualified machinists or toolroom personnel familiar with the finishing equipment in use. Power down and lock out all rotating equipment before loading or changing the film roll. Follow equipment manufacturer guidelines for tension and feed rate settings. Inspect the film path for burrs or sharp edges that could cause premature film breakage before starting a finishing cycle.

Technical Specifications

• Abrasive Mineral: Diamond
• Backing Material: Polyester film
• Abrasive Grade: 30 micron
• Roll Width: 4 inches
• Roll Length: 50 feet
• Core Size: 3 inches
• Unit of Measure: Roll
• UPC: 50051141205712

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044975