3M 7000118400 Microfinishing Film Roll 60 Micron 8x150ft

Product Description

The 3M 7000118400 is an aluminum oxide microfinishing film roll designed for precision finishing of cylindrical surfaces in demanding industrial and automotive applications. The abrasive grain is resin bonded to a 5 mil polyester film backing, which provides dimensional stability and consistent cut throughout the roll. A friction grip coating on the backing surface reduces slip during operation, helping maintain control and finish quality. At 60 micron grade, this roll delivers a controlled cut suited to intermediate finishing stages on precision-ground components. The roll measures 8 inches wide by 150 feet long and fits a 3-inch keyed core.

This microfinishing film roll is used in precision cylindrical grinding and finishing operations, most commonly in automotive and heavy-equipment manufacturing environments. Typical applications include finishing camshafts, crankshafts, and other precision-turned cylindrical components where surface finish tolerances are tight. It is also suited to machine shop operations running superfinishing or lapping equipment with keyed core arbors. Machinists and grinding technicians working on high-volume or close-tolerance shaft work will find this roll sized for production-rate use.

Key Features

• Aluminum oxide abrasive grain resin bonded to a 5 mil polyester film backing for dimensional stability
• 60 micron grade for controlled intermediate finishing on precision cylindrical surfaces
• Friction grip backing coating reduces slip and improves control during use
• 8 inches x 150 ft roll format supports extended production runs
• 3-inch keyed core (ASO keyed) for positive engagement with compatible finishing equipment

Compatibility

Designed for use on finishing equipment with a 3-inch ASO keyed core arbor. Typical fitment includes cylindrical microfinishing and superfinishing machines used in automotive drivetrain component production.

Installation Notes

Installation should be performed by a qualified machinist or grinding technician familiar with cylindrical finishing equipment. Ensure the machine is fully de-energized and the spindle is at rest before loading or unloading the roll. Confirm the keyed core seats fully on the arbor before operation. Follow the equipment manufacturer guidelines for feed rate and contact pressure to avoid tearing the film backing or uneven abrasive wear.

Technical Specifications

• Abrasive Mineral: Aluminum Oxide
• Grade: 60 Micron
• Backing: 5 mil Polyester Film
• Backing Coating: Friction Grip
• Roll Width: 8 inches
• Roll Length: 150 ft
• Core Size: 3 inches
• Core Type: ASO Keyed
• Weight: 9.8 pounds
• UPC: 00051144149704

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000118400