Norton 662611-31609 Abrasive Sanding Disc 8 in A275 P320B

Product Description

The NORTON 662611-31609 is an 8-inch pressure-sensitive adhesive sanding disc designed for surface preparation and finishing work across a range of trade and industrial applications. Built on the A275 disc platform, it carries a P320B grit rating, placing it in the fine-grit range suited for finish sanding, light stock removal, and surface smoothing prior to coating or inspection. The no-hole design means there is no dust-port cutout, making this disc a straightforward fit for solid backup pads. These discs are sold and packaged in bulk quantities of 4, with the unit of measure being each individual disc.

This disc is used in applications where a consistent, fine finish is required on flat or contoured surfaces. P320B grit is commonly specified for final-pass sanding on wood, composite panels, metal fabrication prep, and similar surfaces where a smooth substrate is needed before priming or coating. The PSA backing allows fast mounting and removal from compatible backup pads, reducing changeover time in production or service environments. Tradespeople and fabricators working in millwork, cabinetry, metal finishing, or general surface preparation will find this disc appropriate for those final-stage passes.

Key Features

• A275 disc type with P320B fine grit rating for finish-stage sanding passes
• 8-inch diameter with no hole for use with solid backup pads
• Pressure-sensitive adhesive backing for quick mounting and removal
• Bulk packaging in quantities of 4 discs per order unit
• Suited for wood, composite, and metal surface preparation prior to coating

Compatibility

Designed as an OEM-style replacement or direct-use disc for 8-inch solid backup pads and random orbital or disc sanders that accept PSA-backed abrasive discs without a dust-collection hole pattern.

Installation Notes

Mounting is performed by peeling the release liner and pressing the PSA face firmly onto a clean, dry backup pad surface. Ensure the backup pad is free of adhesive residue or debris before applying a new disc, as contamination reduces bond strength and can cause the disc to release during operation. Always confirm the sander or grinder is powered off and unplugged before changing discs. Follow shop safety protocols including appropriate eye protection and dust management when operating abrasive equipment.

Technical Specifications

• Disc Type: A275
• Grit: P320B
• Diameter: 8 inches
• Hole Pattern: No Hole
• Backing: Pressure-Sensitive Adhesive (PSA)
• Packaging Quantity: 4 per unit
• Unit of Measure: Each
• Minimum Order Quantity: 4

Standard Information

• Brand: NORTON
• Manufacturer Part Number: 662611-31609