3M 7100224121 Flexible Diamond Qrs Cloth Disc 5x1in M125

Product Description

The 3M 7100224121 is a flexible diamond abrasive cloth disc designed for heavy-duty grinding and finishing on hard, difficult-to-grind materials. Built on a QRS hook-and-loop backing for fast disc changes, it features micron-graded diamonds secured with a metal-plated bond that keeps abrasive particles firmly anchored throughout the disc's working life. At 5 inches in diameter by 1 inch, and rated at M125 grit, it delivers consistent cut rates alongside an improved surface finish. Licensed HVAC techs, machinists, fabricators, and trade professionals handling carbide tooling, ceramics, or composite materials will find this disc suited to repetitive production work where both durability and finish quality matter.

This disc is suited for applications involving stone, glass, ceramic, metal, carbide, and composite materials where standard abrasives wear prematurely or leave unacceptable surface finishes. The flexible cloth backing conforms to slightly irregular or contoured surfaces, making it useful in both flat-stock and contoured grinding scenarios. It is sold individually and is compatible with QRS hook-and-loop backup pads of the corresponding diameter.

Key Features

• Micron-graded diamonds at M125 provide consistent cut and finish performance
• Metal-plated bond anchors diamond abrasive securely for extended disc life
• QRS hook-and-loop backing allows fast, tool-free disc changes
• Flexible cloth construction conforms to contoured work surfaces
• Engineered for hard-to-grind materials including carbide, glass, ceramic, and composites
• Improved durability without sacrificing cut rates in demanding applications

Compatibility

Designed for use with QRS hook-and-loop backup pads accepting a 5-inch disc. Suitable for use on angle grinders and random orbital tools configured for QRS-style mounting.

Installation Notes

Mount to a QRS-compatible backup pad on an appropriate angle grinder or orbital tool before powering the tool on. Verify the backup pad diameter matches the disc diameter before use. Wear appropriate eye protection and a respirator rated for fine particulate when grinding ceramic, glass, or composite materials. Follow applicable ANSI abrasive safety standards and the tool manufacturer's maximum RPM rating for disc selection.

Technical Specifications

• Disc Diameter: 5 inches
• Disc Thickness: 1 inch
• Grit Grade: M125
• Abrasive Type: Diamond
• Bond Type: Metal-plated
• Backing Type: QRS hook-and-loop cloth
• Unit of Measure: Each
• Minimum Order Quantity: 2

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100224121