3M 7100224417 Flexible Diamond Qrs Cloth Disc 7in M250

Product Description

The 3M 7100224417 is a flexible diamond abrasive cloth disc designed for heavy-duty grinding and finishing of hard-to-process materials including stone, glass, ceramic, metal, carbide, and composites. Measuring 7 inches in diameter with a 1-inch thickness profile, this disc features micron-graded diamonds secured by a metal-plated bond that locks abrasive particles firmly to a QRS hook-and-loop backing. The M250 designation indicates the diamond micron grade, balancing aggressive material removal with a refined surface finish. It is well suited for trade professionals and fabricators who require consistent performance on demanding substrates without sacrificing cut rate for finish quality.

This disc is used in surface grinding, finishing, and stock removal applications across stone fabrication, glass work, ceramic processing, carbide tooling maintenance, and composite material shaping. The QRS hook-and-loop backing system allows for fast disc changes on compatible random orbital and disc sanders, making it efficient for both production shop environments and field service work. Its flexible cloth construction conforms to contoured surfaces, which is particularly useful when working on curved or irregular workpieces.

Key Features

• Micron-graded M250 diamond abrasive for controlled cut rate and improved surface finish
• Metal-plated bond securely anchors diamond particles to the backing for extended service life
• QRS hook-and-loop backing enables fast, tool-free disc changes
• Flexible cloth construction conforms to curved and irregular workpiece profiles
• Compatible with hard-to-grind materials: stone, glass, ceramic, metal, carbide, and composites

Compatibility

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

Installation Notes

Attach the disc to a QRS-compatible backing pad by aligning the hook-and-loop surfaces and pressing firmly before operation. Verify that the tool spindle speed rating meets or does not exceed the maximum rated speed for the disc before use. Wear appropriate eye protection, a dust mask or respirator, and hearing protection when grinding or finishing hard materials. Inspect the disc for wear or damage before each use and replace when diamond cutting performance degrades noticeably.

Technical Specifications

• Diameter: 7 inches
• Thickness: 1 inch
• Abrasive Grade: M250 (micron-graded diamond)
• Backing Type: QRS hook-and-loop cloth
• Bond Type: Metal-plated
• Compatible Materials: Stone, glass, ceramic, metal, carbide, composites
• Unit of Measure: Each
• UPC: 00051115197550

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100224417