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

This hook-and-loop sanding disc is a non-woven abrasive pad designed for industrial surface conditioning tasks in automation, electronics, electrical and mechanical workshops. It combines aluminium oxide mineral and a conformable non-woven web to clean, blend, deburr and refine surfaces while reducing the risk of gouging. Supplied in a 100-pack, the discs are intended for high-speed rotation and workshop use where consistent finishing and edge treatment are required.

• Aluminium oxide mineral delivers sustained cutting performance
• Coarse 120 grit yields aggressive material removal rates
• Non-woven web minimises surface gouging during blending
• Black backing with white font identifies heavy-duty grade
• Rated for up to 20,000 r/min for high-speed applications
• Hook-and-loop attachment enables Rapid disc changes

• Suitable for light grinding and deburring mild steel components
• Ideal for edge breaking on fabricated electrical enclosures
• Used for cleaning and refining PCB assembly jigs
• Can be used for finishing machined mechanical parts
• Suitable for preparation tasks in automated finishing cells

They use a hook-and-loop fastening system that mates with compatible pad holders for Rapid removal and replacement.

The discs are rated for a maximum safe speed of 20,000 r/min

The non-woven web structure helps disperse heat and resists loading compared with closed-coat abrasives, extending usable life in finishing tasks.

They are supplied as 100 per pack of 3 in hook-and-loop discs suitable for high-volume operations.