Norton 66623325020 Quick-change Disc Tr 3/4 in Aluminum Oxide

Product Description

The NORTON 66623325020 is a TR (Type III) quick-change non-woven abrasive disc from the Bear-Tex Rapid Prep series. Measuring 3/4 inch in diameter, it is built around vortex agglomerated aluminum oxide grain bonded to a high-loft nylon fiber web with proprietary Clean Bond resin technology. The medium grade, 120 grit construction delivers consistent surface conditioning, weld blending, and finishing without loading or glazing. Rated up to 40000 RPM, this disc is designed for use on die grinders and handheld disc sanders. It attaches via a Type R button mount with a black button, and the nylon web backing provides flexible, conformal cutting action on irregular surfaces.

This disc is suited for surface prep, deburring, weld blending, and light finishing across a broad range of materials in fabrication, maintenance, and metalworking applications. Compatible materials include 300 and 400 series stainless steel, brass, bronze, cast iron, copper, ductile iron, fiberglass and composites, gray iron, hard and soft carbon steels, super alloys, titanium, and tool steels. The small 3/4 inch diameter makes it well-suited for tight access areas, weld joints, and detailed finishing work where a full-size disc cannot reach. It is used in both shop and field environments by fabricators, pipefitters, and maintenance technicians.

Key Features

• TR (Type III) quick-change attachment with Type R button system for fast disc swaps
• Vortex agglomerated aluminum oxide grain for consistent cut rate and long service life
• High-loft nylon web backing conforms to contours and irregular surfaces
• Proprietary Clean Bond resin technology reduces loading on soft and non-ferrous metals
• Rated to 40000 RPM for use with die grinders and handheld disc sanders
• Medium grade, 120 grit suitable for weld blending, surface conditioning, and finishing

Compatibility

Designed for use with TR (Type III) quick-change compatible die grinders and handheld disc sanders. Suitable for surface work on 300 series stainless, 400 series stainless, brass, bronze, cast iron, copper, ductile iron, fiberglass and composites, gray iron, hard and soft carbon steels, super alloys, titanium, and tool steels.

Installation Notes

Installation is performed by fabricators, maintenance technicians, or metalworkers using a TR (Type III) compatible quick-change disc grinder. Confirm the tool RPM rating meets or exceeds the disc maximum before mounting. Inspect the disc for damage before each use and do not exceed the rated 40000 RPM. Wear appropriate PPE including eye protection and gloves when operating abrasive tooling.