3M 7000000247 Microfinishing Film Roll 372L 15 Micron

Product Description

The 3M 7000000247 is a microfinishing film roll in the 372L series, designed for precision surface finishing and lapping applications. The roll measures 4 inches wide by 150 feet long with a 3-inch core and is manufactured to a 15-micron abrasive grade, delivering consistent, repeatable scratch patterns on close-tolerance surfaces. The keyed core (ASO) design locks the roll into compatible lapping fixtures and machines, preventing slippage during operation. Machinists, tool-and-die technicians, and precision grinding professionals typically work with this consumable in controlled finishing environments.

This microfinishing film is suited for lapping, honing, and fine-surface refinement on metal components where dimensional accuracy and surface finish quality are critical. The 15-micron grade is positioned for intermediate to fine finishing stages, removing minor surface irregularities while maintaining tight tolerances. It performs on a range of metallic substrates in both production-line and job-shop settings. Each case contains 4 rolls.

Key Features

• 15-micron abrasive grade for intermediate to fine precision finishing
• 4 inches wide by 150 feet long roll format for extended production use
• 3-inch ASO keyed core prevents roll slippage in compatible lapping equipment
• Consistent abrasive coating delivers repeatable surface finish results
• Sold in cases of 4 rolls (minimum order quantity: 4)

Compatibility

Designed for use with lapping and microfinishing machines that accept a 3-inch ASO keyed core roll format. Confirm core and keying compatibility with your specific equipment before ordering.

Installation Notes

Loading and replacing microfinishing film rolls should be performed by qualified machinists or finishing technicians familiar with the lapping equipment in use. Power down and de-energize the machine before changing rolls. Ensure the keyed core is fully seated and locked into the fixture before resuming operation. Follow the equipment manufacturer's guidelines for tension and feed-rate settings.

Technical Specifications

• Series: 372L
• Abrasive Grade: 15 Micron
• Roll Width: 4 inches
• Roll Length: 150 feet
• Core Size: 3 inches
• Core Type: ASO Keyed
• Weight: 2.95 pounds
• Unit of Measure: Roll
• Minimum Order Quantity: 4
• UPC: 00051144142996

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000000247