3M 7000044733 Diamond Lapping Film Disc 3.0 Micron

Product Description

The 3M 7000044733 is a diamond lapping film disc engineered for precision surface finishing on extremely hard materials. Precisely graded diamond abrasive particles are bonded to a dimensionally stable polyester film substrate, producing a consistent, repeatable finish across every pass. The 3.0 micron grade makes this disc suitable for intermediate lapping and polishing stages where tight surface tolerances are required. Technicians working with carbide tooling, ceramic components, optical substrates, fiber optic ferrules, and similarly hard workpieces rely on this format for controlled material removal and surface refinement.

This disc is sized at 4 inches in diameter and is sold individually. It fits into production and field lapping workflows where a no-hub attachment format is specified. The 3.0 micron rating positions it in the finer end of the abrasive sequence, typically used after coarser stock-removal stages to refine the surface before final polishing. It is well suited to controlled bench work in optical, metrology, tooling, and precision mechanical applications.

Key Features

• 3.0 micron diamond abrasive grade for fine lapping and intermediate polishing
• Precisely graded particles deliver consistent, repeatable surface finish
• Polyester film backing provides dimensional stability under controlled lapping pressure
• 4-inch disc format fits standard lapping fixtures and holders
• Effective on carbide, ceramic, optical glass, and other extremely hard materials
• Part of a broader grade range spanning 0.10 to 30.0 micron for full-sequence lapping

Compatibility

Designed for use with standard 4-inch lapping disc fixtures and holders in precision finishing applications involving extremely hard materials such as carbide, ceramics, and optical substrates.

Installation Notes

Secure the disc to the lapping plate or fixture per the holder manufacturer's instructions before applying any workpiece pressure. Ensure the lapping surface and workpiece are clean and free of contamination from coarser abrasive grades before switching to this film. This abrasive film is intended for use by technicians familiar with precision lapping procedures and appropriate fixturing techniques.

Technical Specifications

• Abrasive Grade: 3.0 micron
• Disc Diameter: 4 inches
• Abrasive Type: Diamond
• Backing Material: Polyester film
• Weight: 0.01 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044733