3M 7010298843 Diamond Lapping Film Disc 4 Inch

Product Description

The 3M 7010298843 is a 4-inch diameter diamond lapping film disc designed for precision finishing of extremely hard materials. Precisely graded diamond particles are coated onto a polyester film substrate, producing a consistent, repeatable surface finish across a range of micron grades from 0.10 to 30.0 micron. This disc is engineered for flat lapping and edge-finishing applications where surface uniformity and dimensional accuracy are critical. It is widely used by tool and die technicians, optical fabricators, and precision machining professionals who require controlled material removal on hard substrates.

This disc is suited for lapping operations on ceramics, carbide, hardened steel, glass, and similar hard materials in both production and maintenance environments. It delivers fast cut rates that support higher throughput without sacrificing finish quality. The polyester film backing provides dimensional stability, helping maintain flat surfaces and sharp edges through the lapping process. It is sold individually and is compatible with standard 4-inch lapping disc holders and fixtures.

Key Features

• Precisely graded diamond abrasive particles bonded to a stable polyester film backing
• Available in grades ranging from 0.10 to 30.0 micron for flexible finishing control
• Fast cut rate supports increased throughput in production lapping applications
• Produces flat surfaces and sharp edges with a uniform finish
• 4-inch diameter format compatible with standard disc lapping fixtures

Compatibility

Designed for use with standard 4-inch diameter lapping disc holders and fixtures in precision finishing applications on hard materials.

Installation Notes

This disc is installed by precision machinists, optical technicians, and tool and die professionals. Ensure the lapping fixture and backing plate are clean and free of debris before mounting the disc to avoid surface irregularities. Follow the equipment manufacturer's guidelines for disc attachment and lapping fluid selection appropriate to the workpiece material. Inspect the disc for wear or loading between uses and replace when consistent finish quality can no longer be maintained.

Technical Specifications

• Diameter: 4 inches
• Abrasive Type: Diamond
• Backing Material: Polyester Film
• Grade Range: 0.10 to 30.0 micron
• Weight: 0.01 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010298843