Norton 66254461174 Flap Disc 5 in 36 Grit Type 29

Product Description

The NORTON 66254461174 is a Type 29 zirconia alumina flap disc designed for aggressive material removal on metal and weld surfaces. The conical Type 29 profile presents the abrasive at a working angle, concentrating grinding pressure and improving stock removal rates compared to flat Type 27 discs. At 36 grit, this disc falls in the very coarse grade range, making it well suited for heavy grinding, weld blending, and surface conditioning. The cloth backing supports the zirconia alumina flaps through high-heat, high-pressure passes without premature flap loss. Rated to 12,000 RPM, the disc is compatible with standard 5-inch angle grinders equipped with a 7/8-inch arbor. Installed by metalworkers, fabricators, pipefitters, and maintenance technicians.

This flap disc is used on ferrous and non-ferrous metals in fabrication shops, field welding applications, and structural steel work. The 5-inch diameter and 7/8-inch arbor hole fit the most common angle grinder format found in trade and industrial settings. The very coarse 36-grit cut is appropriate for rapid weld removal, rust elimination, and surface prep before coating or inspection. The blue cloth-backed flap construction resists heat buildup during extended grinding passes. Sold individually with a minimum order quantity of 10 units.

Key Features

• Type 29 conical profile for aggressive grinding at a working angle
• 36 grit zirconia alumina abrasive for very coarse, high-stock-removal cutting
• Cloth backing provides durability and heat resistance during heavy use
• 12,000 RPM maximum speed rating for use with standard 5-inch angle grinders
• 7/8-inch arbor hole fits common angle grinder spindle sizes
• Blue disc color for quick visual identification of grit and disc type

Compatibility

Designed for use with 5-inch angle grinders equipped with a 7/8-inch arbor attachment. Verify that the grinder free-speed rating does not exceed the 12,000 RPM maximum disc rating before use.

Installation Notes

Installation and disc changes must be performed with the grinder unplugged or the battery pack removed. Inspect the disc for cracks, chips, or flap separation before mounting — do not use a damaged disc. Secure the arbor nut with the appropriate spanner wrench to the torque specified by the grinder manufacturer. Always confirm the grinder free-speed rating is at or below the disc maximum RPM rating per ANSI B7.1 guidelines before operation.