Norton 63642502669 Flap Wheel 80 Grit 3.5x1 in Aluminum Oxide

Product Description

The NORTON 63642502669 is an unmounted flap wheel designed for surface blending, deburring, and finishing on metal and other hard materials. It measures 3.5 inches in outside diameter by 1 inch wide, with a 0.625-inch center hole for arbor mounting. The abrasive is aluminum oxide on a cloth backing, rated at medium grade with an 80-grit cut. Maximum operating speed is 12,000 RPM. This wheel is suited for use on die grinders, bench grinders, and drill press setups. Metalworkers, fabricators, and maintenance technicians reach for this style of flap wheel when blending welds or cleaning up interior bores and curved surfaces.

This flap wheel is used in light industrial, fabrication shop, and maintenance environments where controlled material removal and surface finishing are required. Its unmounted design means it is installed directly onto an arbor or mandrel rather than pre-mounted on a spindle. It is well suited for deburring pipe ends, smoothing weld seams, and finishing curved or contoured workpieces where a rigid abrasive would lose contact. No interleaf construction keeps the design straightforward for standard finishing passes.

Key Features

• Aluminum oxide abrasive on cloth backing for durable, consistent cut
• 80 grit medium grade — effective for blending and moderate stock removal
• 3.5-inch outside diameter by 1-inch width for broad surface contact
• 12,000 RPM maximum rated speed for use on standard die grinders and drill presses
• 0.625-inch center hole for direct arbor or mandrel mounting
• No interleaf construction for straightforward finishing applications

Compatibility

Designed as an OEM-style replacement or direct-fit abrasive flap wheel for use on standard arbor-mount die grinders, bench grinders, and drill press setups accepting a 0.625-inch bore unmounted flap wheel.

Installation Notes

Unmounted flap wheels are installed and serviced by machinists, fabricators, or maintenance technicians familiar with abrasive tooling. Always power down and lock out the tool before mounting or removing the wheel. Verify that the tool spindle speed does not exceed the 12,000 RPM maximum rating marked on the wheel. Inspect the wheel for damage before each use and never exceed the rated speed, as doing so creates a safety hazard.