3M 7010298833 Diamond Lapping Film Disc 4 Inch

Product Description

The 3M 7010298833 is a 4-inch diameter PSA-backed diamond lapping film disc designed for precision finishing of extremely hard materials. Built on the 668X platform, it uses precisely graded diamond particles coated onto a polyester film substrate. The pressure-sensitive adhesive backing allows fast, tool-free mounting to compatible lapping plates and holders. Available in grades ranging from 0.10 to 30.0 micron, this disc delivers a consistent, repeatable surface finish with flat geometry and minimal edge rounding. It is suited for applications where surface quality and dimensional control are critical.

This disc is used in precision grinding, lapping, and polishing applications across industries that require tight surface finish tolerances on hard substrates such as ceramics, carbides, optical components, and hardened metals. The PSA backing makes it practical for production environments where frequent abrasive changes are common and downtime must be minimized. Its long abrasive life and fast cut rate support increased throughput on flat-surface finishing operations.

Key Features

• PSA backing for tool-free mounting and quick disc changes
• Precisely graded diamond abrasive particles for consistent, repeatable finishes
• Flat surface geometry with low edge rounding
• Fast cut rate supports higher throughput in production settings
• Long abrasive life reduces the frequency of abrasive changes
• Available in grades from 0.10 to 30.0 micron to suit varying finish requirements

Compatibility

Designed as an OEM-style replacement and standard lapping disc for use with compatible PSA-style flat lapping plates, holders, and precision finishing equipment that accept 4-inch diameter PSA-backed abrasive discs.

Installation Notes

Clean the lapping plate or backing surface thoroughly before applying the PSA disc to ensure full adhesion and prevent slippage during use. Press the disc firmly and evenly onto the plate, starting from the center and working outward to eliminate air pockets. Power down or de-energize any motorized lapping equipment before mounting or removing abrasive discs. Follow the equipment manufacturer's guidelines for disc speed ratings and loading pressure.

Technical Specifications

• Disc Diameter: 4 inches
• Abrasive Type: Diamond
• Backing Type: PSA (Pressure-Sensitive Adhesive)
• Film Substrate: Polyester
• Available Grades: 0.10 to 30.0 micron
• Weight: 0.01 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010298833