3M 7010361777 Psa Abrasive Disc 8 in 40 Grit Aluminum Oxide

Product Description

The 3M 7010361777 is a pressure-sensitive adhesive (PSA) abrasive disc designed for aggressive stock removal on metal, wood, and composite surfaces. The disc measures 8 inches in diameter and carries a 40-grit aluminum oxide abrasive, placing it firmly in the coarse grade range. It rides on an X-weight cloth backing, which provides the rigidity and tear resistance needed for heavy-duty grinding and shaping tasks. The PSA mount means no fasteners or pad clips are required — the disc presses directly onto a compatible foam or rubber backup pad. Trade professionals use this disc for weld grinding, surface prep, and rapid material removal prior to finishing.

This disc is suited for use on bench top motors and random orbital sanders in both shop and field environments. Typical applications include metal fabrication, woodworking, and surface preparation work in residential and light commercial settings. The flexible cloth construction allows the disc to conform slightly to contoured surfaces, making it useful for irregular workpieces. Each package contains one disc. The absence of vacuum holes means this disc is intended for use without dust extraction through the pad.

Key Features

• 8-inch diameter PSA disc for direct adhesive mount to compatible backup pads
• 40-grit aluminum oxide abrasive for coarse, aggressive stock removal
• X-weight cloth backing provides high durability and resistance to tearing under load
• Flexible construction allows conformance to slightly contoured surfaces
• No vacuum holes — designed for solid-face backup pad use
• Compatible with bench top motors and random orbital sanders

Compatibility

Designed for use with bench top motors and random orbital sanders that accept 8-inch PSA-mount backup pads. No vacuum hole pattern, so the disc is not suitable for through-pad dust extraction systems.

Installation Notes

Installation requires a clean, dry backup pad free of debris or adhesive residue from previous discs. Ensure the sander or bench motor is powered off and unplugged before mounting or removing the disc. Press the disc firmly and evenly onto the backup pad to achieve full adhesive contact before starting the tool. Discard the disc if the abrasive is loaded, glazed, or the backing shows signs of tearing.