3M 7100055945 Psa Disc 1 Inch 60 Grit Aluminum Oxide

Product Description

The 3M 7100055945 is a pressure-sensitive adhesive (PSA) abrasive disc designed for material removal and surface preparation in shop and field environments. Built on an X-weight cloth backing, this 1-inch disc uses aluminum oxide abrasive at 60 grit, placing it in the medium grade range. The PSA mount allows fast, tool-free disc changes on compatible spindles. The flexible cloth construction conforms to contoured workpiece surfaces, maintaining consistent contact and cut rate. Licensed tradespeople and fabricators working in metal finishing, weld prep, or surface conditioning will find this disc suited to high-cycle grinding and blending tasks.

This disc is sized at 1 inch in diameter and is intended for use on benchtop motors and random orbital sanders where PSA-mount tooling is specified. The aluminum oxide grain is well suited to ferrous metals, hardwoods, and composite materials. The maroon-colored, X-weight cloth backing provides durability under moderate-to-aggressive stock removal conditions. No vacuum holes are included, so this disc is appropriate for non-vacuum tooling setups. It is sold individually but carries a minimum order quantity of 50 units, making it practical for shops that cycle through abrasives at volume.

Key Features

• 1-inch disc diameter fits PSA-mount benchtop motors and random orbital sanders
• 60-grit aluminum oxide abrasive for medium-grade stock removal and surface prep
• X-weight cloth backing delivers flexibility and durability on contoured surfaces
• Pressure-sensitive adhesive mount allows rapid disc changes without tools
• No vacuum holes — compatible with standard non-vacuum tooling
• Flexible construction maintains abrasive contact on uneven or curved workpieces

Compatibility

Designed for use with benchtop motors and random orbital sanders that accept 1-inch PSA-mount abrasive discs. No vacuum-port tooling required.

Installation Notes

Installation is performed by pressing the PSA-backed disc firmly onto a clean, dry backing pad to ensure full adhesion before operation. Ensure the spindle or pad is free of debris or residual adhesive from previous discs before mounting. Inspect the disc for tears or delamination before use and replace immediately if damage is found. Abrasive disc work should follow applicable shop safety practices including eye protection and dust control appropriate to the material being worked.