3M 732U Precision Shaped Grain, 127 mm Resin, 800 Grade, 800 Grit 50

This grinding disc is a resin-bonded, hook-and-loop abrasive designed for industrial surface finishing and material removal across mechanical, electrical and automation workshops. It uses precision-shaped grain on a paper backing to deliver consistent cutting behaviour and is supplied in packs suited to high-volume operations. The disc is appropriate for use with power sanding tools operating at high peripheral speeds and for processes requiring effective dust control.

• Cuts up to twice as fast for reduced cycle time
• Precision-shaped grain gives consistent finish control
• Anti-load coating reduces clogging for longer runtime
• Hookit attachment allows quick on/off disc changes
• Suits high-speed operation at up to 12,000 rpm
• Paper backing balances flexibility with durability

• Suitable for dimensioning metal components prior to assembly
• Ideal for scuffing painted surfaces before topcoat application
• Used for removing coating materials from electrical enclosures
• Can be used for de-flashing and edge rounding on composites
• Suitable for sanding wood parts in prototype fabrication

It features a C-weight paper backing combined with a hook-and-loop Hookit attachment for Rapid replacement and stable running on compatible backup pads.

When used with Xtract-style multi-hole systems the abrasive supports efficient dust extraction, reducing loading and improving the operator’s environment and cycle consistency.

The abrasive is suitable for ferrous and non-ferrous metals, paint coatings, composites, gelcoat and various woods due to the precision-shaped grain and resin bond.

This product is offered as a 50-pack of 127mm discs in an 800‑grit option for fine finishing tasks.

The resin bond secures the abrasive mineral for sustained cutting performance on tougher substrates such as metal and composite materials.