3M 7000118897 Psa Disc 12 in 50 Grit Aluminum Oxide

Product Description

The 3M 7000118897 is a pressure-sensitive adhesive (PSA) abrasive disc engineered for aggressive material removal on flat and contoured surfaces. Built on an X-weight cloth backing, this 12-inch disc uses aluminum oxide abrasive at 50 grit to deliver coarse-grade cutting action suitable for weld blending, surface prep, and stock removal tasks. The flexible backing conforms to mild surface irregularities, maintaining consistent abrasive contact across the workpiece. Licensed tradespeople and shop professionals working in metal fabrication, HVAC sheet metal work, and general industrial maintenance will find this disc well-suited for high-load grinding applications where durability and cut rate matter.

This disc is designed for use on bench top motors and random orbital sanders. The 12-inch diameter and PSA mount make it a direct fit for compatible platens and backup pads in shop and field environments. The coarse 50-grit aluminum oxide construction handles initial surface conditioning, rust and scale removal, and weld seam blending on steel, aluminum, and other common trade materials. No vacuum holes are included, making it suited for solid-platen setups. The maroon disc color is consistent with the 3M 348D series designation.

Key Features

• 12-inch diameter PSA disc for bench top motors and random orbital sanders
• 50-grit aluminum oxide abrasive provides coarse-grade, high-rate stock removal
• X-weight cloth backing delivers durability under heavy grinding loads
• Flexible construction conforms to mild surface contours for consistent contact
• No vacuum holes — designed for solid-platen backup pad use
• Part of the 3M 348D series

Compatibility

Compatible with bench top motors and random orbital sanders equipped with 12-inch PSA backup pads or platens. No additional specific model compatibility data was provided in the product input.

Installation Notes

Installation of PSA abrasive discs should be performed by qualified shop personnel or trade professionals familiar with angle grinder and sander safety protocols. Ensure the machine is powered down and unplugged before mounting or removing the disc. Clean the backup pad surface before applying the PSA disc to ensure full adhesion and prevent disc slippage during operation. Always verify that the disc speed rating is equal to or greater than the maximum RPM of the host machine before use.