3M 7100115343 Diamond Lapping Film Disc 4 Inch

Product Description

The 3M 7100115343 is a diamond lapping film disc engineered for precision surface finishing on extremely hard materials. The disc features precisely graded diamond particles coated onto a durable polyester film backing, producing a consistent and repeatable finish across production runs. At 4 inches in diameter, it is sized for use with standard lapping fixtures and polishing equipment. Available in multiple grades ranging from 0.10 to 30.0 micron, the disc allows technicians to select the exact abrasive cut rate required for their application. This product is sold individually and is suited for high-throughput finishing operations in tool, optical, and precision machining environments.

This lapping film disc is used in applications requiring flat, uniform surface finishes on hard substrates such as ceramics, carbides, optical glass, and hardened metals. It is commonly specified for fiber optic connector polishing, precision tooling, semiconductor component finishing, and lapping of wear surfaces. The polyester film backing maintains dimensional stability under load, helping produce flat surfaces and sharp, defined edges. Technicians working in optical labs, precision grinding shops, and fiber optic assembly operations will find this disc compatible with standard disc polishing fixtures and lapping plates.

Key Features

• Precisely graded diamond abrasive particles for uniform, repeatable surface finish
• Polyester film backing provides dimensional stability and supports flat lapping results
• Available in grades from 0.10 to 30.0 micron to match cut rate requirements
• Fast cut rate supports increased throughput in production environments
• Produces flatter surfaces and sharper edges compared to conventional abrasive films
• Available in disc, sheet, and roll formats for varied fixturing needs

Compatibility

Designed for use with standard disc lapping fixtures and polishing equipment that accept 4-inch diameter lapping film discs. Suitable for finishing extremely hard materials including ceramics, carbides, and hardened metals across multiple grades.

Installation Notes

Lapping film discs are typically handled and applied by technicians in precision machining, optical, or fiber optic assembly environments. Ensure the lapping plate or fixture surface is clean and free of contamination before mounting the disc to avoid surface defects. Apply consistent, controlled pressure during use to maintain finish uniformity. Follow all applicable workplace safety guidelines for abrasive products, including appropriate eye protection.

Technical Specifications

• Diameter: 4 inches
• Abrasive Material: Diamond
• Backing Material: Polyester Film
• Grit Range: 0.10 to 30.0 micron
• Weight: 0.01 pounds
• Unit of Measure: Each
• UPC: 00051111561355

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100115343