Norton 66261131454 Psa Disc 400 Grit 5 in Aluminum Oxide 100pk

Product Description

The NORTON 66261131454 is a pressure-sensitive adhesive (PSA) abrasive disc designed for surface finishing and material removal in sanding applications. This disc measures 5 inches in diameter and features 400-grit aluminum oxide abrasive rated at a super fine grade, making it suited for light stock removal, finishing passes, and prep work between coats. The B-weight paper backing provides a balance of flexibility and durability for use on contoured or flat workpieces. Each package contains 100 discs from the A275 series. Machinists, woodworkers, metalworkers, and finishing tradespeople are the primary users of this consumable.

These PSA discs are used in production and shop environments where a random-orbit or disc sander with a PSA-style platen is in use. The 400-grit super fine rating makes them well suited for final sanding stages on wood, painted surfaces, plastic, or light metal finishing. The flexible paper backing conforms to slightly curved surfaces without tearing under normal use. No vacuum holes are included, so they are intended for solid-platen sanders rather than dust-collection-equipped random-orbit tools.

Key Features

• 400-grit aluminum oxide abrasive at super fine grade for finish-stage sanding
• 5-inch diameter PSA backing for direct adhesive mount to compatible platens
• B-weight paper backing offers flexibility for contoured workpiece surfaces
• No vacuum holes — designed for solid-platen disc sanders
• 100 discs per package — suited for production or high-volume shop use
• A275 series construction for consistent cut rate and finish quality

Compatibility

Designed for use with 5-inch PSA-style solid-platen disc sanders and random-orbit sanders equipped with PSA backing pads that do not require vacuum holes.

Installation Notes

Installation of PSA discs requires a clean, dry platen surface free of adhesive residue from previous discs. Power down and unplug the sander before mounting or removing any abrasive disc. Press the disc firmly and evenly onto the platen to ensure full adhesive contact before operating. Discard discs that show visible loading, tearing, or loss of abrasive — do not attempt to re-adhere a disc that has partially lifted during use.