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

This hook-and-loop sanding disc is a heavy-duty surface conditioning abrasive designed for industrial use in automation, electronics, electrical and mechanical environments. It pairs a conformable non-woven web backing with aluminium oxide mineral to perform cleaning, blending, deburring and light grinding at production pace. The centre-hole, hook-and-loop attachment supports Rapid mounting on compatible backing pads and grinders for repetitive finishing tasks.

• PSG mineral delivers consistent cut rate and material removal
• Non-woven web backing resists gouging while conforming to shapes
• Extra coarse 80 grit provides aggressive edge and surface conditioning
• Rated for up to 13,300 rpm enabling high-speed operation
• Black backing with white font aids quick identification in stores

• Suitable for deburring mild steel components on robotic cells
• Ideal for edge breaking and radiusing in sheet-metal work
• Used with centre-hole back-up pads on handheld grinders
• Can be used for blend and finish steps in assembly lines
• Suitable for Rapid surface preparation before coating or bonding

It is designed for hook-and-loop mounting and fits centre-hole back-up pads and compatible quick-change systems when using appropriate retainer nuts.

The web structure yields a more controlled finish by conforming to contours and reducing the risk of deep scratches or undercutting compared with rigid abrasives.

Aluminium oxide is the abrasive mineral

The discs are packaged as 50 per pack to support continuous use and minimise downtime for replenishment.