Norton 66254400265 Flap Disc 5 Inch 80 Grit Ceramic Type 27

Product Description

The NORTON 66254400265 is a Type 27 ceramic flap disc designed for aggressive grinding and blending on metal surfaces. Built around the R980P series, this disc features ceramic abrasive grain bonded to a plastic backing plate, delivering consistent cut rates and extended disc life compared to aluminum oxide alternatives. The 5-inch diameter with a 7/8-inch center arbor hole fits standard angle grinders used across fabrication, welding, and metal finishing work. At 80 grit, it falls in the medium grade range, making it well suited for weld removal, surface prep, and stock removal tasks where a balance of cut speed and surface finish is needed.

This flap disc is intended for use by metal fabricators, welders, pipefitters, and maintenance technicians working with steel, stainless, and other ferrous metals. The Type 27 flat-profile design allows for flush grinding at low angles, which is the standard approach for flat workpiece surfaces and weld seam blending. It is sold individually and compatible with 5-inch angle grinders fitted with a 7/8-inch arbor. The plastic backing provides rigidity while reducing vibration during extended use.

Key Features

• Ceramic abrasive grain for high cut rate and longer service life versus conventional abrasives
• Type 27 flat profile optimized for low-angle flat surface grinding and weld blending
• 80 grit medium grade balances stock removal speed with surface finish quality
• Plastic backing plate adds rigidity and reduces operator fatigue from vibration
• 7/8-inch arbor hole fits standard angle grinder spindles without an adapter
• R980P series construction for consistent flap adhesion and uniform wear

Compatibility

Designed as a direct-mount replacement flap disc for 5-inch angle grinders with a 7/8-inch arbor attachment. Suitable for standard coated abrasive grinding applications on ferrous metals.

Installation Notes

Mounting and disc changes should be performed by qualified personnel following ANSI B7.1 safety standards for abrasive wheels. Ensure the grinder is fully powered down and unplugged before changing the disc. Confirm the grinder RPM rating meets or exceeds the disc maximum rated speed before operation. Inspect the disc for damage before each use and never use a cracked or delaminated flap disc.