3M HD-DH Aluminium Oxide Surface Conditioning Disc Abrasive Disc, 4.5 in, Coarse Grade, 50 Grit 50 Per Pack

This hook-and-loop sanding disc is a heavy-duty non-woven abrasive designed for surface-conditioning tasks in industrial settings. It combines aluminium oxide PSG mineral with a conformable non-woven web backing to perform light grinding, deburring, blending and finishing on metals. Supplied as a 50-per-pack solution for use with angle grinders and compatible pad attachments, it is intended for production and maintenance environments in automation, electronics, electrical and mechanical industries.

• 120 grit aluminium oxide provides aggressive material removal and throughput
• Black non-woven web backing resists gouging while conforming to contours
• Hook-and-loop attachment enables Rapid disc changes and secure retention
• Centre hole design suited to back-up pads and threaded attachments
• Rated to 13,300 r/min for high-speed angle grinder operations

• Suitable for light grinding and edge breaking on mild steel components
• Ideal for deburring machined parts in automated production lines
• Used for blending weld seams on electrical enclosures and panels
• Can be used for finishing castings and fabricated assemblies
• Suitable for preparation of surfaces prior to coating in maintenance workshops

It uses a hook-and-loop fastening system with a centre hole for compatibility with common back-up pads and retainer nuts.

A conformable non-woven web backing offers load resistance while reducing the risk of undercutting and gouging.

Aluminium oxide PSG is used to deliver consistent cutting action and extended life on ferrous metals.

The product is supplied as a 50-per-pack option to support continuous operations and reduce changeover frequency.

The disc is rated to a maximum safe speed of 13,300 r/min and should not be used above this limit.