3M 7000008860 Diamond Lapping Film Disc 5 Inch

Product Description

The 3M 7000008860 is a 5-inch diameter diamond lapping film disc engineered for precision surface finishing on extremely hard materials. Precisely graded diamond particles are coated onto a polyester film backing, delivering a consistent, repeatable finish with every pass. The disc is suited for applications requiring tight surface geometry control, including flat lapping and edge work on ceramics, carbides, glass, and similar substrates. Skilled trade professionals and precision finishing technicians rely on this format for high-throughput, controlled material removal.

This diamond lapping film disc is used in industrial and precision shop environments where conventional abrasives cannot achieve the required finish on hard or brittle materials. The 5-inch disc format fits standard lapping fixtures and rotary lapping equipment. It is available in multiple grades ranging from 0.10 micron to 30.0 micron, allowing selection across roughing, semi-finishing, and final finishing stages within the same product family.

Key Features

• Precisely graded diamond abrasive particles bonded to a durable polyester film backing
• Delivers fast cut rates and increased throughput compared to conventional lapping films
• Produces flatter surfaces and sharper edges on hard or brittle workpieces
• Uniform finish repeatability across the full disc surface
• Available in grades from 0.10 micron to 30.0 micron for multi-stage finishing
• Also available in sheets and rolls for broader fixture compatibility

Compatibility

Designed for use on extremely hard materials such as ceramics, carbides, glass, and similar substrates; compatible with standard 5-inch rotary lapping fixtures and equipment accepting film-backed abrasive discs.

Installation Notes

This disc is installed by precision finishing technicians on rotary or reciprocating lapping equipment. Ensure the lapping platen or fixture is clean and free of debris before mounting the disc to prevent uneven contact or premature wear. Apply consistent, controlled pressure during use and allow the abrasive to do the work rather than forcing material removal. Follow equipment manufacturer guidelines for disc mounting and rotation speed to maintain finish quality and disc integrity.

Technical Specifications

• Disc Diameter: 5 inches
• Abrasive Type: Diamond
• Backing Material: Polyester Film
• Grade Range: 0.10 to 30.0 micron
• Unit of Measure: Each
• Minimum Order Quantity: 25
• Weight: 0.01 pounds
• UPC: 00051111500644

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000008860