3M 7100224418 Flexible Diamond Qrs Cloth Disc 9x1 in M250

Product Description

The 3M 7100224418 is a flexible diamond abrasive disc designed for heavy-duty grinding and finishing on hard, difficult-to-work materials including stone, glass, ceramic, metal, carbide, and composites. Measuring 9 inches in diameter with a 1-inch thickness profile and featuring M250 micron grading, this disc uses a metal-plated bond to securely anchor micron-graded diamonds to a QRS hook-and-loop backing. The result is a disc engineered to deliver improved durability under demanding load conditions while maintaining a better surface finish without sacrificing cut rates. It is used by fabricators, machinists, and trade professionals who require consistent diamond abrasive performance on non-ferrous and hard-surface substrates.

This disc is suited for applications where conventional abrasives fail — primarily hard-to-grind materials such as stone, glass, ceramics, carbide tooling, and advanced composites. The QRS hook-and-loop backing allows for quick disc changes on compatible random orbital and disc sanders, making it well suited for production environments and field fabrication work where downtime between disc changes must be minimized. Its flexible cloth backing conforms to slightly contoured surfaces, extending its usefulness beyond flat-stock grinding to mild profile work.

Key Features

• Metal-plated bond anchors micron-graded diamonds securely to the disc substrate
• M250 micron grading delivers a consistent, controlled finish on hard materials
• QRS hook-and-loop backing enables fast, tool-free disc changes
• Flexible cloth construction conforms to slightly contoured work surfaces
• Engineered for improved durability in demanding, high-load grinding applications
• Compatible with hard-to-grind materials: stone, glass, ceramic, metal, carbide, and composites

Compatibility

Designed for use on QRS hook-and-loop compatible disc sanders and random orbital tools. Suitable for grinding and finishing applications on stone, glass, ceramic, metal, carbide, and composite materials.

Installation Notes

Install onto a QRS hook-and-loop compatible backing pad, ensuring the disc seats fully and evenly before operation. Verify that the tool speed rating does not exceed the disc maximum rated speed before use. Inspect the disc and backing pad for wear or contamination prior to each use, and replace any disc showing delamination, diamond loss, or backing deterioration. This product should be handled and used in accordance with applicable workplace safety standards and the manufacturer guidance sheet.

Technical Specifications

• Diameter: 9 inches
• Thickness: 1 inch
• Abrasive Grade: M250 micron
• Bond Type: Metal-plated
• Backing Type: QRS hook-and-loop cloth
• Application: Stone, glass, ceramic, metal, carbide, composites
• Unit of Measure: Each
• UPC: 00051115197567

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100224418