3M 7000118909 Psa Abrasive Disc 80 Grit 0.5 Inch

Product Description

The 3M 7000118909 is a pressure-sensitive adhesive (PSA) abrasive disc designed for fast stock removal and surface preparation in shop and bench environments. This disc measures 0.5 inches in diameter and features 80-grit aluminum oxide abrasive, placing it in the medium grade range. The X-weight cloth backing provides durability and flexibility during use, making it well-suited for conforming to workpiece contours. Licensed tradespeople, machinists, and fabricators use this disc in production and maintenance grinding and sanding applications where a reliable PSA mount simplifies disc changes.

This disc is intended for use with benchtop motors and random orbital sanders where PSA-compatible platens or backing pads are installed. The 0.5-inch diameter makes it appropriate for detail work, tight radii, and small-surface finishing tasks. It ships in a minimum order quantity of 50 units, making it a practical choice for shops that cycle through abrasives at high volume. No vacuum holes are included, so it is matched to solid backing pads without dust-collection ports.

Key Features

• 80-grit aluminum oxide abrasive for medium-grade material removal
• Pressure-sensitive adhesive backing for quick, tool-free disc mounting and removal
• X-weight cloth backing delivers strength and flexibility on contoured surfaces
• 0.5-inch diameter sized for detail and small-surface applications
• Compatible with benchtop motors and random orbital sanders
• No vacuum holes — designed for use with solid backing pads

Compatibility

Designed for use with benchtop motors and random orbital sanders equipped with PSA-compatible backing pads or platens. No vacuum holes are present, so use with solid (non-perforated) backing pads only.

Installation Notes

Ensure the backing pad or platen surface is clean and free of debris before applying the PSA disc; contamination reduces adhesion and can cause disc separation during operation. Power down and de-energize the sander or motor before mounting or removing any abrasive disc. Apply firm, even pressure across the disc face when attaching to the backing pad to ensure full adhesive contact. Discard any disc showing signs of delamination, torn backing, or reduced grit coverage.