3M 7100199260 Hookita 321U Disc 6 Inch 40 Grit Ceramic Ao

Product Description

The 3M 7100199260 is a Hookita 321U abrasive disc designed for automotive paint preparation and body repair work. The disc combines ceramic grain with aluminum oxide mineral abrasive to deliver consistent cutting performance across multiple stages of the sanding and paint prep process. At 6 inches in diameter and 40 grit, it is suited for aggressive material removal and surface leveling. A multi-hole pattern supports dust extraction and reduces loading during use. Licensed auto body technicians and collision repair professionals are the primary installers of this product.

This disc is used in automotive collision repair and refinishing environments, primarily for bare metal, body filler, and primer sanding. The 40-grit rating makes it appropriate for initial stock removal and shaping work before progressing to finer grits. The multi-hole configuration aligns with most standard backup pads to maintain airflow and dust extraction efficiency. It is sold in box quantities with a minimum order of 4 units.

Key Features

• Ceramic and aluminum oxide mineral blend for consistent cutting across paint prep stages
• Multi-hole disc pattern reduces loading and supports dust extraction
• Anti-loading coating keeps the cutting surface clear of debris
• Hookita attachment system allows fast disc changes without tools
• Upgraded resin construction improves disc durability and finish quality
• 6-inch diameter compatible with most standard Hookita backup pads

Compatibility

Designed for use with Hookita-style backup pads that accept 6-inch multi-hole abrasive discs. The multi-hole pattern is engineered to align with most standard backup pad configurations used in automotive body and paint applications.

Installation Notes

Installation is performed by collision repair technicians using a pneumatic or electric random orbital sander equipped with a compatible Hookita backup pad. Ensure the sander is powered off and disconnected from the air supply before mounting or removing the disc. Align the disc holes with the backup pad ports to maintain proper dust extraction. Do not exceed the disc speed rating marked on the product or backup pad.

Technical Specifications

• Disc Diameter: 6 inches
• Grit: 40
• Abrasive Mineral: Ceramic Aluminum Oxide blend
• Attachment Type: Hookita
• Hole Pattern: Multi-hole
• Package Weight: 4.469 pounds
• Package Length: 13.8 inches
• Package Width: 6.9 inches
• Package Height: 7.3 inches
• Unit of Measure: Box
• Minimum Order Quantity: 4

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100199260