Norton 66254491942 Ceramic Alumina Flap Disc 60 Grit

Product Description

The NORTON 66254491942 is a Type 27 ceramic alumina flap disc designed for aggressive material removal on angle grinders. Built on a cloth backing with a medium 60-grit abrasive, this disc delivers consistent cut rates and cooler grinding action compared to standard aluminum oxide products. The ceramic alumina grain self-sharpens during use, extending disc life on hard metals, stainless steel, and structural steel fabrication work. The flat Type 27 profile suits surface grinding and blending on flat or slightly contoured workpieces. Rated at a maximum of 12,000 RPM, it fits standard 5/8-11 arbor angle grinders used across fabrication, welding, and metalworking trades.

This flap disc is suited for professional metalworking applications including weld blending, surface preparation, and deburring on carbon steel, stainless steel, and hard alloys. The trimmable design allows the operator to expose fresh abrasive flaps during use, maintaining cut performance through the disc life. Typical users include metal fabricators, ironworkers, pipefitters, and maintenance welders working in shop or field environments. The 5-inch diameter and 5/8-11 center hole are standard for mid-size angle grinders common across these trades.

Key Features

• Ceramic alumina grain self-sharpens for extended cut life on hard metals
• Type 27 flat profile optimized for surface grinding and blending
• Medium 60-grit abrasive suitable for aggressive stock removal with moderate finish
• Cloth backing provides durability and flexibility under load
• Trimmable construction allows fresh abrasive exposure during use
• Maximum 12,000 RPM rating compatible with standard 5-inch angle grinders

Compatibility

Designed for use with 5-inch angle grinders equipped with a standard 5/8-11 arbor thread. Fits grinders from common professional tool brands accepting that arbor size and rated for disc speeds up to 12,000 RPM.

Installation Notes

Installation and disc changes must be performed by a qualified operator with the grinder fully powered off and unplugged or battery removed before mounting. Verify the grinder speed rating does not exceed the 12,000 RPM maximum disc rating before use. Always install the appropriate grinder guard and wear proper eye, face, and hand protection when operating flap discs. Follow ANSI B7.1 and applicable OSHA standards for the safe use, handling, and storage of abrasive wheels.