3M HD-DR Aluminium Oxide Surface Conditioning Disc Hook & Loop Sanding Disc, 3 in, Extra Coarse Grade, 25 Grit 100 Per

This hook-and-loop sanding disc is a non‑woven surface conditioning product designed for industrial metal and woodworking operations, offering aggressive material removal and finish control in automated or manual processes. It uses aluminium oxide abrasive embedded in a conformable web to perform light grinding, deburring, blending and finishing at high spindle speeds up to 20,000 rpm, and is supplied in packs of 100 for production environments.

• Extra-coarse abrasive delivers Rapid material removal and edge shaping
• Aluminium oxide PSG enhances cut performance and life
• Black backing with white font identifies heavy-duty variant
• No-hole design enables use with standard hook-and-loop pads
• Non-woven web reduces gouging while preserving part geometry

• Suitable for deburring and edge breaking on mild steel components
• Ideal for blending welds and refining radii in fabrication
• Used for finishing aluminium parts in robotic cells
• Can be used for light grinding on electrical enclosures
• Suitable for surface preparation prior to coating or bonding

The disc uses aluminium oxide, selected for consistent cut rate and durability on ferrous and mixed substrates.

It attaches via a hook-and-loop Interface to compatible back-up pads, including universal pad options for secure retention.

The discs are supplied as 3 in single-diameter discs and packaged as 100 per pack for production use.

Yes, it is rated for operation up to 20,000 rpm, suitable for many pneumatic and electric tools when matched to appropriate back-up pads.

It is intended for automation, electronics, electrical and mechanical sectors requiring controlled heavy-duty surface conditioning.