Norton 77696090184 Flap Disc 120 Grit Type 27 3 Inch

Product Description

The NORTON 77696090184 is a Type 27 flap disc engineered for grinding and finishing applications on metal surfaces. It uses zirconia alumina abrasive material bonded in a coated configuration, delivering consistent stock removal at fine grit levels. The fiberglass backing provides rigidity and resistance to flex under load. Rated at a maximum of 30,000 RPM, the disc attaches via a Quick-Change Type S interface, allowing tool-free swaps on compatible angle grinders and die grinders. At 3 inches in diameter, this disc suits detail work, weld blending, and surface prep in tight areas. Metalworkers, fabricators, and industrial maintenance techs are the primary users.

This flap disc is suited for light to moderate grinding and surface conditioning on ferrous and non-ferrous metals. The 120 grit fine grade makes it appropriate for finishing passes, deburring, and removing light oxidation or mill scale where a smooth final surface is required. The compact 3-inch diameter works well in confined weld joints, tubing, and structural profiles where a full-size disc cannot reach. It is sold individually with a minimum order quantity of 10 units.

Key Features

• 120 grit fine grade zirconia alumina abrasive for controlled material removal and smooth finishes
• Type 27 flat profile for surface grinding and blending on flat or slightly contoured workpieces
• Quick-Change Type S attachment for fast disc changes without wrenches
• Fiberglass backing for consistent rigidity and durability under operating loads
• 30,000 RPM maximum speed rating suitable for high-speed die grinders
• 3-inch diameter for access in tight or confined work areas

Compatibility

Designed for use with Quick-Change Type S compatible angle grinders and die grinders that accept 3-inch Type 27 flap discs.

Installation Notes

Installation is performed by metalworkers and fabricators using Quick-Change Type S compatible grinders. Verify the tool spindle speed does not exceed the 30,000 RPM disc rating before use. Inspect the disc for damage before mounting and ensure the backing plate or adapter is clean and seated correctly. Always wear appropriate PPE including face shield and gloves when operating abrasive discs.