3M 7100177919 Diamond Abrasive Disc 1.5 Inch 27500 Rpm

Product Description

The 3M 7100177919 is a micron-graded diamond abrasive disc engineered for precision grinding and polishing on hard, demanding substrates. The disc runs on a Y-weight cloth backing bonded with a heat-resistant resin system that holds diamond particles firmly under load. At 1.5 inches in diameter and rated to 27500 RPM, it is built for high-speed tooling applications where consistent material removal and repeatable surface finish are required. The water-resistant construction supports use with liquid coolants or straight dry operation depending on the application and tooling setup.

This disc is intended for use on ceramics, carbides, hardened metals, and similarly tough substrate materials where conventional aluminum oxide or silicon carbide abrasives lose efficiency quickly. It suits precision machining, tool and die, and finishing operations where controlled stock removal at fine micron grades is critical. The resin bond and cloth backing combination maintains dimensional stability across wet and dry cycles, making it a reliable choice for shops running high-volume finishing passes or prototype work on advanced materials.

Key Features

• Micron-graded diamond mineral delivers consistent finishes on ceramics, carbides, and hard metals
• Y-weight cloth backing provides durability and dimensional stability under high-speed operation
• Heat-resistant resin bond supports wet or dry use without degradation
• Water-resistant design allows coolant application to extend abrasive life
• 1.5 inch diameter suits compact rotary tooling and precision grinding heads
• 27500 RPM speed rating compatible with high-speed die grinders and precision spindles

Compatibility

Designed for use with rotary attachment systems accepting 1.5 inch diameter abrasive discs. Suitable for precision grinding and polishing equipment operating up to 27500 RPM. Consult tooling manufacturer specifications to confirm proper backing plate or mandrel compatibility before use.

Installation Notes

Installation should be performed by a qualified machinist or abrasive tooling technician familiar with high-speed rotary equipment. Power down and lock out the tool before mounting or removing the disc. Confirm the spindle speed does not exceed the 27500 RPM rating marked on the disc. Inspect the disc and backing plate for damage before each use and replace any disc showing tears, delamination, or mineral loss.