3M 7010325534 Microfinishing Film Roll 372L 50 Micron

Product Description

The 3M 7010325534 is a microfinishing film roll designed for precision finishing of cylindrical surfaces. It uses aluminum oxide abrasive grains resin-bonded to a 5 mil polyester film backing, delivering consistent cut and finish across the working surface. The backing features a friction grip coating that resists slipping during use. At 50 micron grit, this roll is suited for controlled stock removal and surface refinement on precision-machined components. The roll measures 4 inches wide, 150 feet long, and fits a 3 inch core. Machinists, automotive technicians, and precision grinding shops are the primary users of this product.

This microfinishing film roll is used in precision cylindrical finishing applications, including superfinishing and lapping operations on automotive camshafts, crankshafts, and similar turned or ground parts. The polyester film backing provides dimensional stability under tension, making it suitable for use on roll finishing machines and manual lapping setups. It is commonly found in automotive rebuilding shops, engine machine shops, and industrial production environments where tight surface finish tolerances are required.

Key Features

• Aluminum oxide abrasive resin-bonded to a durable 5 mil polyester film backing
• 50 micron abrasive grade for controlled material removal and surface refinement
• Friction grip coating on the backing reduces slipping during operation
• 4 inch width x 150 ft length on a 3 inch core for extended production use
• Polyester film backing offers dimensional stability under tension
• Suited for cylindrical superfinishing and lapping of precision engine components

Compatibility

Designed for use in roll finishing machines and manual lapping setups requiring a 3 inch core and 4 inch wide microfinishing film. Typical applications include precision cylindrical finishing of automotive camshafts and crankshafts.

Installation Notes

Installation and use of this microfinishing film should be performed by qualified machinists or technicians familiar with cylindrical finishing equipment. Ensure the finishing machine is fully stopped and de-energized before loading or changing the roll. Verify that the core diameter and roll width are compatible with the machine spindle and guides before threading the film. Avoid kinking or creasing the film during loading, as damage to the backing will affect surface finish consistency.

Technical Specifications

• Abrasive Material: Aluminum Oxide
• Backing: 5 mil Polyester Film
• Grit Grade: 50 Micron
• Roll Width: 4 inches
• Roll Length: 150 ft
• Core Diameter: 3 inches
• Backing Feature: Friction Grip Coating
• Unit of Measure: Roll
• Minimum Order Quantity: 4
• UPC: 00051111500323

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010325534