3M 7000118211 Diamond Lapping Film 9.0 Micron Roll

Product Description

The 3M 7000118211 is a diamond lapping film supplied in roll format, used for precision surface finishing on extremely hard materials. Precisely graded diamond particles are coated onto a polyester film substrate, delivering a consistent, repeatable finish with each pass. At a 9.0 micron grade, this roll is suited for intermediate lapping stages where controlled material removal and surface uniformity are critical. Finishing technicians, tool and die specialists, and precision machinists rely on this type of abrasive film when tight tolerances and surface quality cannot be compromised.

This lapping film is designed for use on hard substrates including ceramics, carbide, hardened steel, optical components, and similar materials that standard abrasives cannot finish effectively. The roll format measures 3 inches wide by 50 feet long, making it compatible with automated lapping equipment, hand lapping fixtures, and cut-to-length workflows. It is commonly found in precision grinding shops, fiber optic connector polishing operations, and industrial maintenance environments where repeatable surface finishes are required.

Key Features

• Precisely graded 9.0 micron diamond abrasive for controlled, repeatable material removal
• Diamond particles bonded to a dimensionally stable polyester film backing
• Roll format at 3 inches wide by 50 feet long suits both automated and manual lapping setups
• Effective on extremely hard materials including ceramics, carbide, and hardened metals
• Available across a broad grade range from 0.10 to 30.0 micron for multi-stage finishing sequences

Compatibility

Designed as an OEM-style abrasive consumable for use with lapping equipment and hand lapping fixtures that accept 3-inch wide roll film stock.

Installation Notes

Installation and handling should be performed by trained finishing or machining technicians familiar with lapping film systems. Ensure all rotating or driven lapping equipment is powered down and de-energized before loading or changing film stock. Handle the film surface carefully to avoid contaminating the abrasive layer with oils, dust, or debris, as contamination directly affects finish quality. Follow equipment manufacturer guidelines for film tensioning and feed rate to maintain consistent contact and avoid tearing.

Technical Specifications

• Abrasive Grade: 9.0 micron
• Abrasive Type: Diamond
• Backing Material: Polyester film
• Roll Width: 3 inches
• Roll Length: 50 feet
• Core Size: 3 inches
• Weight: 2 pounds
• Unit of Measure: Roll
• UPC: 50051111698483

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000118211