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

This hook & loop sanding disc is a heavy‑duty non‑woven abrasive designed for industrial surface conditioning and light grinding tasks on power tools. It combines aluminium oxide mineral with a conformable non‑woven web to perform cleaning, deburring, blending and edge work in manufacturing environments. The product is intended for use on angle grinders and sanders where a hook‑and‑loop attachment is required.

• Coarse 120‑grit PSG aluminium oxide for sustained material removal
• Black non‑woven backing preserves edge shape during wear
• No‑hole design for uninterrupted contact at high speeds
• Rated to 13,300 rpm for compatible high‑speed tools
• Heavy‑duty construction extends service life under pressure

• Suitable for deburring steel components in automation lines
• Ideal for edge‑breaking on mechanical assemblies
• Used for blending welds on electrical enclosures
• Can be used for light grinding on electronic housings
• Suitable for surface finishing in mechanical workshops

Aluminium oxide PSG is used for its combination of cut rate and durability on ferrous materials, providing consistent removal without Rapid breakdown.

The non‑woven web backing offers conformity to profiles while resisting gouging and helping to maintain disc shape during edge wear.

The disc is designed for hook‑and‑loop retention and is suitable for hook‑and‑loop back‑up pads and holders on handheld grinders and pneumatic sanders.

A 50‑disc pack reduces downtime from frequent reordering and supports continuous production runs in fabrication and maintenance operations.