3M 7000044742 Diamond Lapping Film Disc 0.50 Micron 5 in

Product Description

The 3M 7000044742 is a diamond lapping film disc engineered for precision surface finishing and polishing applications. Tightly graded diamond mineral is precision coated onto a polyester film backing, delivering consistent material removal rates and superior surface finishes from the first use through the end of the disc's service life. At 0.50 micron diamond grade, this disc is suited for ultra-fine finishing passes where tight tolerances and smooth surface quality are required. It is available with or without a PSA (pressure-sensitive adhesive) backing to suit different fixture and lapping plate configurations.

This disc is used in applications requiring controlled, repeatable surface finishing on hard materials such as ceramics, carbide, optical components, fiber optic connectors, and precision metal parts. At 5 inches in diameter, it fits standard lapping plate and backing pad setups commonly used in production and bench-top finishing environments. It is sold individually and is well suited for technicians and machinists performing final polishing steps where surface roughness specifications must be met.

Key Features

• 0.50 micron diamond grade for ultra-fine surface finishing
• Tightly graded diamond mineral ensures consistent cut rate and finish quality
• Precision coating on polyester film backing provides dimensional stability
• Available with or without PSA backing for flexible mounting options
• 5-inch disc diameter fits standard lapping plate configurations

Compatibility

Designed for use with standard 5-inch lapping plates and backing pads in bench-top and production precision finishing setups.

Installation Notes

This disc is installed by technicians or machinists performing precision lapping and polishing operations. When using the PSA-backed version, ensure the lapping plate or backing pad surface is clean and free of debris before applying the disc to achieve full, uniform adhesion. For non-PSA versions, secure the disc according to the fixture manufacturer's instructions. Follow all applicable shop safety procedures when working with rotary lapping equipment.

Technical Specifications

• Diamond Grade: 0.50 micron
• Disc Diameter: 5 inches
• Backing Material: Polyester film
• Abrasive Type: Diamond
• PSA Backing: Available with or without
• Weight: 0.01 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 25
• UPC: 00051111615546

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044742