3M HD-DR Aluminium Oxide Surface Conditioning Disc Abrasive Disc, 2 in, Extra Coarse Grade, 25 Grit 25

This hook-and-loop sanding disc is a heavy-duty non-woven abrasive designed for industrial surface-conditioning tasks. It combines aluminium oxide PSG mineral within a conformable non-woven web to perform cleaning, blending, deburring and light grinding at elevated rotational speeds. Supplied in bulk, it suits repetitive production environments in automation, electronics, electrical and mechanical workshops.

• Extra-coarse 60 grit for aggressive material removal and Faster cycle times
• Non-woven web reduces risk of gouging while finishing surfaces
• Hook-and-loop attachment enables Rapid disc changes for throughput
• Rated maximum safe speed 25,000 rpm for high-speed hand or machine use
• Black backing for heavy-duty identification and edge durability

• Suitable for deburring machined metal components in automated cells
• Ideal for blending weld seams on mild steel assemblies
• Used for edge breaking on stamped electrical parts
• Can be used for surface cleaning prior to component assembly
• Suitable for light grinding and finishing on aluminium chassis

It uses aluminium oxide with precision-shaped grain to maintain cutting action on ferrous materials and resist premature glazing.

The hook-and-loop system secures discs to compatible back-up pads and permits quick manual removal and replacement.

The product is identified by a black backing and is formulated for extended life and edge retention during aggressive tasks.

Yes, the disc’s maximum safe speed of 25,000 rpm accommodates many high-speed pneumatic and rotary tools when matched to appropriate pad and tool specifications.