3M 7000118162 Microfinishing Film Roll 372L 15 Micron 8x150ft

Product Description

The 3M 7000118162 Microfinishing Film Roll 372L is a precision abrasive roll engineered for tight-tolerance surface finishing on cylindrical workpieces. Aluminum oxide abrasive grain is resin bonded to a 5 mil polyester film backing, delivering consistent cut and a uniform finish across the full roll length. The backing features a friction grip coating that reduces slippage during operation, improving control and repeatability. At 15 micron grade, this roll is suited for fine finishing passes where surface geometry and smoothness are critical. The roll measures 8 inches wide by 150 feet long with a 3-inch keyed core for secure mounting on compatible equipment.

This microfinishing roll is designed for precision finishing of cylindrical surfaces in automotive and industrial applications. Typical use cases include camshaft and crankshaft finishing, where consistent micron-level stock removal and surface finish quality are required. The keyed core (ASO) ensures positive engagement with the finishing machine spindle, preventing core slippage under load. It is used in production and rebuild environments by machinists and surface finishing technicians working to tight dimensional tolerances.

Key Features

• 15 micron aluminum oxide abrasive for fine, controlled stock removal on precision surfaces
• Resin bond construction on a 5 mil polyester film backing for dimensional stability and consistent finish
• Friction grip backing coating reduces slippage during cylindrical finishing operations
• ASO keyed core (3 inches) provides positive drive engagement on compatible finishing equipment
• Full 150-foot roll length supports extended production runs with minimal changeovers
• Suited for automotive camshaft and crankshaft finishing applications

Compatibility

Designed for use on cylindrical surface finishing equipment that accepts a 3-inch ASO keyed core roll format. Typical applications include automotive camshaft and crankshaft precision finishing operations as stated by the manufacturer.

Installation Notes

Installation and operation of microfinishing film rolls should be performed by qualified machinists or surface finishing technicians familiar with the host finishing machine. Ensure the machine spindle is fully stopped and de-energized before loading or unloading the roll. Verify that the keyed core seats completely and positively on the drive spindle before starting any finishing cycle. Follow the equipment manufacturer guidelines for roll tension, feed rate, and coolant application to achieve the specified surface finish.

Technical Specifications

• Abrasive Material: Aluminum Oxide
• Grade: 15 Micron
• Backing: 5 mil Polyester Film
• Backing Coating: Friction Grip
• Bond Type: Resin
• Width: 8 inches
• Length: 150 feet
• Core Size: 3 inches
• Core Type: ASO Keyed
• Weight: 6.75 pounds
• Unit of Measure: Roll
• UPC: 00051144801374

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000118162