Norton 66261131456 Psa Disc 320 Grit 5 Inch 100 Pack

Product Description

The NORTON 66261131456 is a pressure-sensitive adhesive (PSA) abrasive disc designed for flat and orbital sanding applications. It measures 5 inches in diameter and carries a 320-grit aluminum oxide abrasive, placing it in the extra fine grade range. The paper backing is B-weight, offering a balance of flexibility and durability suited to finish sanding on wood, composites, metal, and painted surfaces. Each order includes 100 discs. These discs are used by woodworkers, finish carpenters, auto body technicians, and general fabricators who need consistent cut and finish at a fine grit stage.

This disc is part of the NORTON A275 series and is intended for use on PSA-compatible random orbital and disc sanders in shop and field settings. The flexible paper backing conforms well to slightly contoured surfaces, making it a practical choice for final stock removal and surface prep before finishing coats. No vacuum holes are included, so it is best suited for sanders without dust-extraction ports or for applications where hole pattern matching is not required.

Key Features

• 320-grit extra fine aluminum oxide abrasive for finish sanding and surface prep
• 5-inch diameter fits standard PSA-style random orbital and disc sanders
• B-weight paper backing provides flexibility for slightly contoured surfaces
• Pressure-sensitive adhesive backing for quick disc changes without tools
• No vacuum holes — suited for solid-platen or non-dust-extraction setups
• 100 discs per pack for high-volume or continuous production use

Compatibility

Designed for use with 5-inch PSA-compatible random orbital and disc sanders that accept adhesive-backed abrasive discs without vacuum holes.

Installation Notes

Ensure the sander platen is clean and free of adhesive residue before applying a new disc, as contamination reduces bonding and causes early disc release. Press the disc firmly and evenly onto the platen to ensure full adhesion across the surface. Discard discs that show loading, glazing, or backing tears, as degraded abrasives reduce cut quality and can leave uneven scratches on finished surfaces.