3M Precision Shaped Grain Adhesive-Backed/PSA Sanding Disc Cutting Disc, 125 mm, 180+ Grade, 50 Grit

This adhesive-backed/PSA sanding disc is a cloth-backed abrasive designed for demanding stock removal and finishing tasks in industrial settings. It combines a Durable J-weight backing with 3M Precision-Shaped Grain to deliver sustained cutting performance. Suited to orbital sanders with adhesive or hook-and-loop back-up pads, it is intended for use on metals, wood and composite substrates where efficient material removal and controlled dust management are required.

• Precision-Shaped Grain delivers continuous Sharp cutting action and extended life
• Anti-static treatment reduces charged swarf and supports dust control
• Open coat construction prevents loading and maintains cutting rate
• J-weight cloth backing balances wear resistance with flexibility
• Compatible with hook-and-loop and adhesive back-up systems for quick changes

• Suitable for heavy stock removal from aluminium panels and metal assemblies
• Ideal for blending and finishing hardwood and softwood components
• Used for sanding composite parts such as fibreglass and gelcoat surfaces
• Can be used on production lines requiring fewer disc changes and higher throughput

It uses a J-weight cloth backing which offers a compromise between durability and flexibility, enabling consistent contact on curved and flat surfaces while resisting wear.

The open coat construction spaces abrasive mineral to reduce loading, helping the disc keep cutting even on resinous woods and coated surfaces.

An anti-static treatment reduces electrostatic attraction of swarf and, when combined with a compatible dust-extraction back-up pad and vacuum, enhances extraction efficiency.

Yes, finer grits within the range are suitable for blending and producing smoother finishes on aluminium, woods and composites.