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The NORTON 66261121033 is a 3-inch quick-change abrasive disc from the Gemini R766/R228 series, designed for use with Speed-Lok TR (Type III) attachment systems. It features 60-grit aluminum oxide abrasive bonded to a coated cloth and polyester backing with an X/Y-weight, 2-ply construction. Rated to 20,000 RPM, this disc delivers consistent stock removal and surface conditioning in high-demand applications. It is installed by metalworking fabricators and finishing technicians using handheld disc sanders. The brown, coated face and flexible backing allow it to conform to workpiece contours during deburring, cleaning, and detailing operations.
This disc is suited for use on a range of metals including 300 and 400 series stainless steel, aluminum, brass, bronze, soft and hard carbon steels, and titanium. Its medium-grade aluminum oxide abrasive makes it a practical choice for deburring weld seams, cleaning oxidized surfaces, and general surface prep in fabrication and maintenance environments. The Speed-Lok TR quick-change interface allows fast disc swaps without additional hardware, reducing downtime on the tool.
Compatible with handheld disc sanders equipped with a Speed-Lok TR (Type III) or Type R attachment system. Suitable for material applications including 300 Series Stainless, 400 Series Stainless, Aluminum, Brass, Bronze, Hard Carbon Steels, Soft Carbon Steels, and Titanium.
Installation is performed by metalworking technicians and fabricators using compatible handheld disc sanders. Confirm the tool spindle accepts Speed-Lok TR (Type III) or Type R quick-change discs before mounting. Always verify the tool RPM rating does not exceed the disc maximum of 20,000 RPM prior to use. Inspect the disc for damage before each use and follow applicable ANSI B7 safety standards for abrasive products.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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