Norton 66261138635 Quick-change Disc 2 in 50 Grit

Product Description

The NORTON 66261138635 is a 2-inch quick-change abrasive disc from the R860 series, designed for use with Speed-Lok TS (Type S, Type II) attachment systems on handheld disc sanders. Built on a rigid Y-weight polyester backing rated to 30,000 RPM, this coated disc uses zirconia alumina grain at 50 grit (coarse grade) to deliver aggressive stock removal without frequent disc changes. The semi-open coat construction resists loading, and the grain is self-sharpening, meaning it fractures under pressure to continuously expose fresh cutting edges. This disc is waterproof and suited to wet or dry grinding applications. Licensed HVAC sheet metal technicians, fabricators, weld shop techs, and general trade mechanics are the typical installers.

This disc is rated for use on a wide range of metals and woods, including 300 and 400 series stainless steel, aluminum, brass, bronze, hard and soft carbon steels, and hard and soft woods. Its primary applications are stock removal, weld blending, and deburring on flat and contoured surfaces. The 2-inch diameter fits compact handheld disc sanders, making it practical for tight access areas or detail work on fabricated assemblies. The blue disc color and silver button are R860 series identifiers that aid organization in multi-grit shops.

Key Features

• Zirconia alumina grain is self-sharpening for consistent cut rate throughout disc life
• Semi-open coat resists loading on soft metals, wood, and painted surfaces
• Rigid Y-weight polyester backing rated to 30,000 RPM for high-speed handheld use
• Waterproof backing supports wet or dry grinding operations
• Speed-Lok TS (Type S) attachment for fast, tool-free disc changes
• Coarse 50-grit for aggressive stock removal, weld blending, and deburring

Compatibility

Compatible with Speed-Lok TS (Type S, Type II) quick-change handheld disc sanders. Rated for use on 300 series stainless, 400 series stainless, aluminum, brass, bronze, hard carbon steels, soft carbon steels, hard woods, and soft woods.

Installation Notes

Install and remove using the Speed-Lok TS mandrel according to the tool manufacturer's instructions — no tools are required for disc changes. Verify the sander spindle speed does not exceed 30,000 RPM before mounting the disc. Always wear appropriate eye and face protection, and ensure workpiece is secured before grinding. Do not use this disc on a grinder or tool for which it is not rated.