Merit Abrasives 05539512515 Hook Loop Disc 50 Grit 4 Inch

Product Description

The MERIT ABRASIVES 05539512515 is a 4-inch hook and loop abrasive disc designed for surface preparation, blending, and finishing applications. Built with aluminum oxide abrasive on a non-woven, flexible backing, it delivers consistent material removal at a coarse 50 grit rating. The flexible construction allows the disc to conform to contoured and flat surfaces alike, making it practical for a range of grinding and prep tasks. This disc mounts via a hook and loop attachment system and is rated to a maximum of 15,000 RPM. It is sold individually and is intended for professional use in metalworking, fabrication, and surface conditioning workflows.

This disc is suited for coarse surface preparation tasks including rust removal, weld blending, paint stripping, and scale removal on metal substrates. Its non-woven construction resists loading, making it effective on ferrous and non-ferrous metals in fabrication shop and field environments. The 50 grit coarse grade is appropriate for aggressive stock removal and initial surface conditioning passes before moving to finer grits. Trades that commonly use this disc include metal fabricators, welders, pipe fitters, and maintenance technicians working with grinders and random orbital tools equipped with hook and loop backing pads.

Key Features

• 50 grit coarse grade for aggressive surface removal and initial conditioning
• Aluminum oxide abrasive material for durable, consistent cutting action
• Non-woven flexible construction conforms to flat and contoured surfaces
• Hook and loop attachment for fast disc changes without tools
• Rated to 15,000 RPM for use with standard right-angle and random orbital grinders
• No vacuum holes, keeping the disc surface fully active across the entire face

Compatibility

Designed for use with 4-inch hook and loop backing pads on right-angle grinders and random orbital sanders rated to a minimum of 15,000 RPM.

Installation Notes

Install and remove disc only when the grinder is powered off and fully stopped. Verify the backing pad is rated for hook and loop attachment and that the tool RPM does not exceed the disc maximum of 15,000 RPM. Wear appropriate PPE including eye protection and gloves when operating abrasive tools. Inspect the disc for damage or delamination before each use and discard if any defects are present.