Merit Abrasives 08834137475 Mounted Flap Wheel 320 Grit

Product Description

The MERIT ABRASIVES 08834137475 is a mounted flap wheel designed for precision surface finishing and deburring in tight spaces and contoured areas. Built with aluminum oxide coated cloth flaps, this wheel delivers consistent extra fine material removal at 320 grit. The shank mount style allows direct chucking into die grinders, flex shafts, and rotary tools. Rated to 40,000 RPM, it handles high-speed finishing passes without flap separation. At 0.375 inches in diameter and 0.375 inches face width, it is well suited for small-bore work, port finishing, and detail deburring where larger wheels cannot reach. Machinists, tool and die techs, and fabricators are the primary users.

This mounted flap wheel is used in metalworking, fabrication, and maintenance applications requiring fine surface finishing in restricted areas. Typical scenarios include deburring drilled holes, blending welds in tight joints, and finish work on die cavities or mold surfaces. The 1/8 inch shank diameter is the standard size for most die grinder collets and rotary tool chucks, making this wheel a straightforward drop-in for most existing setups. It is appropriate for use on ferrous metals, non-ferrous metals, and other hard materials where 320 grit extra fine finishing is called for.

Key Features

• 320 grit aluminum oxide coated cloth flaps for extra fine surface finishing
• 0.375 inch diameter and 0.375 inch face width for small-bore and contoured applications
• 1/8 inch shank diameter fits standard die grinder and rotary tool collets
• 40,000 RPM maximum speed rating for high-speed finishing passes
• Cloth backing material supports consistent flap flex and uniform abrasion
• No interleaf construction for direct flap-to-workpiece contact

Compatibility

Designed for use with die grinders, flex shafts, and rotary tools equipped with a 1/8 inch collet. Suitable as an OEM-style replacement or standard-stock mounted flap wheel for fine finishing operations on metal and hard surfaces.

Installation Notes

Mounting is performed by a machinist or fabricator by inserting the 1/8 inch shank into a compatible collet and tightening securely before operation. Always confirm the tool spindle speed does not exceed the 40,000 RPM maximum rating marked for this wheel. Inspect flaps for wear or separation before each use and discard any wheel showing damage. Eye protection and appropriate PPE are required during grinding and finishing operations per applicable shop safety standards.