3M 7100199417 Hookita 321U Disc 5 Inch 800 Grit

Product Description

The 3M 7100199417 is a Hookita 321U abrasive disc engineered for automotive paint prep and body repair. The disc uses a ceramic and aluminum oxide mineral blend to maintain consistent cut rate and surface finish throughout the disc life. At 5 inches in diameter and 800 grit, it targets fine sanding stages where surface refinement and finish quality matter. A multi-hole pattern supports dust extraction and reduces loading, keeping the cutting surface clear longer. An anti-loading coating and upgraded resin system add durability. Automotive body technicians and paint prep professionals are the primary installers of this product.

This disc is suited for residential and commercial automotive refinishing environments, including body shops and detail prep facilities. The 800 grit rating positions it for final-stage paint prep, scuff sanding, and finish leveling on painted panels and body substrates. The Hookita hook-and-loop style attachment allows fast disc swaps on compatible backup pads, reducing downtime during multi-stage sanding workflows. The multi-hole pattern aligns with most standard backup pads to maintain dust extraction performance across the repair process.

Key Features

• Ceramic and aluminum oxide mineral blend for consistent cut and finish at 800 grit
• 5 inch diameter with multi-hole pattern for dust extraction and reduced loading
• Anti-loading coating keeps the cutting surface clear of dust and debris
• Hookita hook-and-loop attachment for fast disc changes on compatible backup pads
• Upgraded resin system improves disc durability and extends usable life
• Suited for final-stage paint prep, scuff sanding, and finish leveling

Compatibility

Designed for use with Hookita-compatible backup pads; the multi-hole pattern aligns with most standard 5 inch backup pads used in automotive paint prep and body repair applications.

Installation Notes

This disc is installed and used by automotive body technicians and paint prep professionals. Before mounting, ensure the backup pad surface is clean and free of debris to allow full hook-and-loop engagement. Match the disc hole pattern to the backup pad to maintain dust extraction performance. Inspect the disc before each use and replace if the abrasive mineral or backing shows signs of wear or damage.

Technical Specifications

• Disc Diameter: 5 inches
• Grit: 800
• Abrasive Mineral: Ceramic Aluminum Oxide blend
• Attachment Type: Hookita hook-and-loop
• Hole Pattern: Multi-hole
• Package Weight: 2.963 pounds
• Package Dimensions: 13.8 x 5.9 x 6.3 inches
• UPC: 051131362630

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100199417