Norton 66260311784 Quick-change Disc 120 Grit Diamond 3 in

Product Description

The NORTON 66260311784 is a 3-inch diamond-coated quick-change abrasive disc designed for use with Speed-Lok TR (Type R) attachment systems. Running at up to 20,000 RPM, this 120-grit medium-grade disc is built on a flexible cloth backing and features a unique diamond abrasive pattern that increases disc life while delivering consistent cut rate and finish quality. It is suited for grinding, finishing, and surface prep work on metals, coatings, and fiberglass or composite materials. The coated black disc also removes rust and scale and can produce metallurgical stamps and coupons.

This disc is intended for use with handheld disc sanders equipped with a Type R (Speed-Lok TR) quick-change hub. It performs on tool steels, fiberglass, and composite materials in fabrication, maintenance, and surface preparation applications. The flexible cloth backing allows the disc to conform to contours, making it practical for both flat and curved workpieces in industrial and shop environments. Installers and technicians working on metal finishing, weld cleanup, and composite repair will find this disc well suited to those tasks.

Key Features

• Diamond abrasive pattern extends disc life and lowers overall cost per use
• 120 grit medium grade delivers improved cut rate and controlled finish on metals and coatings
• Flexible cloth backing conforms to flat and curved work surfaces
• Rated to 20,000 RPM for use with high-speed handheld disc sanders
• Removes rust and scale and produces metallurgical stamps and coupons
• Speed-Lok TR (Type R) attachment system for fast, tool-free disc changes

Compatibility

Designed for handheld disc sanders equipped with a Speed-Lok TR (Type R) quick-change attachment system. Suitable for material applications including fiberglass, composites, and tool steels.

Installation Notes

Confirm the sander spindle accepts a Type R quick-change hub before mounting this disc. Power down and disconnect or lock out the tool before attaching or removing the disc. Do not exceed the 20,000 RPM maximum speed rating. Inspect the disc for damage before each use and replace immediately if cracks, tears, or glazing are observed.