Norton 66261121021 Quick-change Disc 2in 50 Grit Aluminum Oxide

Product Description

The NORTON 66261121021 is a coated abrasive quick-change disc engineered for use with Speed-Lok TR (Type III) and Type R attaching systems on handheld disc sanders. Built on a heavy-duty X/Y-weight, 2-ply cloth and polyester backing, this 2-inch disc delivers coarse 50-grit aluminum oxide cutting action. It is rated to 30,000 RPM for safe use at full tool speed. The flexible backing conforms to contoured workpiece surfaces while maintaining consistent abrasive contact. Designed for deburring, cleaning, and surface conditioning on metal substrates, it is a practical choice for fabrication and finishing workflows handled by machinists, metalworkers, and maintenance technicians.

This disc is suited for use on a broad range of metals in both light industrial and shop environments. Material applications include 300 and 400 series stainless steel, aluminum, brass, bronze, hard carbon steels, soft carbon steels, and titanium. The Speed-Lok TR quick-change mount allows fast disc swaps without tools, reducing downtime during multi-step grinding and finishing operations. The coarse 50-grit cut rate makes it most effective for aggressive material removal, weld blending, deburring, and initial surface prep rather than final finishing passes.

Key Features

• Speed-Lok TR (Type III) and Type R quick-change attaching system for tool-free disc changes
• 50-grit aluminum oxide abrasive grain — coarse grade for aggressive material removal
• X/Y-weight 2-ply cloth and polyester backing for durability and flexibility on contoured surfaces
• 30,000 RPM maximum speed rating for compatibility with standard handheld disc sanders
• Compatible with stainless steel, aluminum, brass, bronze, carbon steels, and titanium
• Part of the Gemini R766/R228 series — designed for deburring, cleaning, and detailing applications

Compatibility

Designed for use with Speed-Lok TR (Type III) and Type R quick-change handheld disc sanders. Compatible material applications include 300 Series Stainless, 400 Series Stainless, Aluminum, Brass, Bronze, Hard Carbon Steels, Soft Carbon Steels, and Titanium. Part of the Norton Gemini R766/R228 series.

Installation Notes

Installation is performed by machinists, metalworkers, or maintenance technicians using compatible Type R or TR quick-change disc sanders. Before mounting or removing a disc, ensure the tool is powered off and disconnected from its power source. Verify the disc speed rating meets or exceeds the tool's no-load RPM before operation. Inspect the backing pad and disc for damage prior to each use — do not operate a torn or delaminated disc.