3M 7100224739 Flexible Diamond Qrs Cloth Disc 9x1 in

Product Description

The 3M 7100224739 is a flexible diamond abrasive cloth disc designed for heavy-duty grinding and finishing on hard-to-work materials. Built on a QRS hook-and-loop backing, it uses micron-graded diamonds anchored by a metal-plated bond, delivering consistent cut rates while producing a refined surface finish. The disc measures 9 inches in diameter with a 1-inch thickness profile and is compatible with QRS-style random orbital and disc sanders. It is intended for use by fabricators, tile setters, stone workers, and skilled tradespeople who regularly work with difficult substrates.

This disc is suited for applications involving stone, glass, ceramic, metal, carbide, and composite materials where conventional abrasive discs wear too quickly or fail to produce an adequate finish. The flexible cloth backing conforms to contoured and irregular surfaces, making it useful in both flat and shaped-surface grinding scenarios. It is appropriate for shop fabrication environments as well as field service where hard material removal or surface prep is required.

Key Features

• Micron-graded diamond abrasive for consistent cut performance on hard materials
• Metal-plated bond securely anchors diamonds to the backing for extended disc life
• Flexible cloth construction conforms to curved or irregular surfaces
• QRS hook-and-loop backing for fast disc changes without tools
• Engineered for stone, glass, ceramic, carbide, metal, and composite substrates
• Maintains finish quality without sacrificing cut rate under demanding use

Compatibility

Designed for use with QRS hook-and-loop compatible disc sanders and random orbital tools that accept 9-inch abrasive discs.

Installation Notes

Attach the disc to a QRS-compatible backing pad by pressing the hook-and-loop surfaces firmly together before operation. Inspect the backing pad for wear or contamination that could cause the disc to release during use. Operate at the tool speed recommended for diamond abrasive discs and use appropriate eye, hand, and respiratory protection when grinding stone, ceramic, or composite materials. Do not exceed the maximum RPM rating of the tool or backing pad.

Technical Specifications

• Diameter: 9 inches
• Thickness: 1 inch
• Abrasive Type: Micron-graded diamond
• Bond Type: Metal-plated
• Backing Type: QRS hook-and-loop cloth
• Grade Designation: M125
• Unit of Measure: Each
• UPC: 00051115197512

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100224739