3M 7010325371 Diamond Lapping Film Disc 4 Inch Psa

Product Description

The 3M 7010325371 is a PSA-backed diamond lapping film disc designed for precision surface finishing on extremely hard materials. Based on the 668X product line, it features precisely graded diamond abrasive particles coated onto a polyester film substrate. The pressure-sensitive adhesive backing allows fast, secure mounting on flat lapping plates. Available in grades ranging from 0.10 to 30.0 micron, this disc delivers a consistent, repeatable finish with minimal edge rounding. It is used primarily by precision machinists, optical technicians, fiber optic technicians, and tool-and-die professionals who require tight surface finish tolerances.

This diamond lapping film disc is suited for flat lapping applications on ceramics, carbide tooling, optical components, fiber optic connectors, and other hard-to-abrade materials. The 4-inch diameter format fits standard lapping plate setups used in both production and bench-service environments. The PSA backing eliminates the need for separate adhesive, reducing changeover time and keeping the disc flat during use. Long abrasive life reduces the frequency of disc changes, supporting higher throughput in production settings.

Key Features

• PSA backing for fast, secure mounting on flat lapping plates
• Precisely graded diamond particles for a consistent, repeatable finish
• Polyester film substrate maintains flatness and minimizes edge rounding
• Available in micron grades from 0.10 to 30.0 micron for multi-stage lapping
• Long abrasive life reduces changeover frequency and increases throughput
• 4-inch diameter fits standard bench and production lapping plate setups

Compatibility

Designed as an OEM-style replacement or direct-use disc for flat lapping plate systems accepting 4-inch PSA-backed abrasive discs. Compatible with lapping applications on ceramics, carbide, optical glass, and similarly hard materials.

Installation Notes

This disc is installed by precision machinists or technicians performing flat lapping or surface finishing operations. Before mounting, ensure the lapping plate surface is clean and free of debris to allow full PSA contact. Peel the backing and press the disc firmly onto the plate, working from the center outward to eliminate air pockets. Do not reuse a disc once removed, as the adhesive may not re-seat flat.

Technical Specifications

• Diameter: 4 inches
• Backing Type: Pressure-Sensitive Adhesive (PSA)
• Abrasive Type: Diamond
• Substrate: Polyester Film
• Available Micron Grades: 0.10 to 30.0 micron
• Weight: 0.01 pounds
• UOM: Each
• UPC: 00051111546963

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010325371