Norton 66261138172 Quick-change Disc 3 in 240 Grit

Product Description

The NORTON 66261138172 is a 3-inch coated abrasive quick-change disc from the Gemini R228 series, designed for use with Speed-Lok TS (Type II / Type S) attachment systems. Built on an X-weight, 2-ply cotton cloth backing, this disc delivers consistent cut and durability across deburring, cleaning, and detailing operations. The aluminum oxide grain runs at 240 grit, placing it in the very fine grade range, and the disc is rated to 20,000 RPM. It is intended for handheld disc sanders in metalworking environments where surface finish and material removal control are both required.

This disc is suited for use on a broad range of metals in both shop and field environments. Documented compatible materials include 300 series stainless, 400 series stainless, aluminum, brass, bronze, hard carbon steels, soft carbon steels, and titanium. The 240 grit designation makes it a logical choice for final deburring passes, light cleaning, and detail work where coarser grits would leave unwanted scratch patterns. It attaches directly to handheld disc sanders equipped with a Type S quick-change spindle.

Key Features

• Speed-Lok TS (Type II / Type S) quick-change attachment for tool-free disc swaps
• 240 grit aluminum oxide grain rated very fine for controlled material removal and surface finishing
• X-weight, 2-ply cotton cloth backing provides rigidity and tear resistance under load
• Rated to 20,000 RPM for compatibility with standard handheld disc sander speeds
• Flexible construction adapts to contoured workpiece surfaces
• Compatible with a wide range of ferrous and non-ferrous metals including stainless, aluminum, brass, bronze, and titanium

Compatibility

Designed for use with handheld disc sanders equipped with a Type S (Speed-Lok TS / Type II) quick-change spindle. Compatible materials include 300 series stainless, 400 series stainless, aluminum, brass, bronze, hard carbon steels, soft carbon steels, and titanium.

Installation Notes

Installation and disc changes must be performed with the sander powered off and disconnected from its power source. Verify the spindle type is Type S before mounting to confirm secure engagement. Inspect the disc for damage before each use and do not exceed the 20,000 RPM maximum rated speed. This disc is not trimmable; use the correct diameter for the backing pad to avoid edge lifting during operation.