3M 732U Precision Shaped Grain, 152.4 mm Resin, 500+ Grade, 50 Grit 250 Per Pack

This grinding disc is a resin-bonded abrasive designed for industrial metalworking and surface preparation tasks, delivering consistent cutting and finishing performance for mechanical, electrical and automation workshops. It is intended for use with hook-and-loop back-up pads and can be applied in both hand and powered sanding operations where controlled material removal and reduced rework are required.

• Precision-shaped grain cuts up to twice as fast, increasing throughput
• Anti-load coating reduces clogging and maintains consistent finish
• High safe operating speed enables operation at 12,000 r/min for Rapid work
• Paper backing balances flexibility and durability for multiple job use
• Multi-hole Xtract pattern supports up to 99% dust removal with extraction

• Suitable for dimensioning and de-flashing metal components
• Used for scuffing and prep of painted surfaces before topcoat
• Ideal for coating removal and refinement on composite panels
• Can be used for edge rounding and surface finishing of wood parts
• Suitable for rework tasks in electronics enclosure fabrication

It uses precision-shaped grain which forms consistent Sharp peaks that Slice material, producing cooler cutting, Faster stock removal and extended abrasive life compared with conventional grains.

Discs with the Xtract multi-hole pattern channel particulates into an extraction system, reducing airborne and surface dust and limiting loading on the abrasive face.

The product employs a C-weight paper backing for a balance of flexibility and durability and uses a Hookit attachment method for quick on/off disc changes.

It is suitable for metal, paint-coated substrates, composites, gelcoat and various woods, producing a consistent finish with fewer rogue scratches and reduced rework.