Norton 66261121020 Quick-change Disc 40 Grit 2 in Speed-lok Tr

Product Description

The NORTON 66261121020 is a 2-inch quick-change abrasive disc from the Gemini R766/R228 series, designed for use with Speed-Lok TR (Type III) and Type R attachment systems. It uses 40-grit aluminum oxide on a flexible, X/Y-weight two-ply cloth and polyester backing, placing it in the extra-coarse grade range. This disc is built for deburring, cleaning, and detailing work on stainless steel, soft metals, and carbon steels. Licensed HVAC techs, metalworkers, and fabricators reach for this disc when they need an aggressive cut with a fast-swap mounting system on a handheld disc sander.

This disc is suited for material removal and surface prep on 300 and 400 series stainless steel, aluminum, brass, bronze, hard and soft carbon steels, and titanium. The quick-change TR mount eliminates the need for a wrench at disc changes, making it practical for production deburring and detail work where downtime matters. It is rated for handheld disc sander use and is not trimmable.

Key Features

• Speed-Lok TR (Type III) quick-change attachment, also compatible with Type R systems
• 40-grit aluminum oxide abrasive for aggressive, extra-coarse material removal
• X/Y-weight two-ply cloth and polyester backing for flexible, durable performance
• Rated to 30,000 RPM for use on handheld disc sanders
• Works across a broad range of metals including stainless, aluminum, brass, bronze, and titanium
• Brown disc color with black button; part of the Gemini R766/R228 series

Compatibility

Designed for handheld disc sanders using Speed-Lok TR (Type III) or Type R quick-change attachment systems. Compatible material applications include 300 Series Stainless, 400 Series Stainless, Aluminum, Brass, Bronze, Hard Carbon Steels, Soft Carbon Steels, and Titanium.

Installation Notes

Install and remove this disc using the Speed-Lok TR or Type R mandrel according to the tool manufacturer's instructions — no wrench is required. Always verify the sander's rated RPM meets or exceeds 30,000 RPM before mounting. Inspect the disc for damage before each use and do not use a disc that is cracked, torn, or delaminated. Wear appropriate eye protection and follow all applicable ANSI abrasive safety standards during operation.