3M 7000144085 Sanding Disc 3 Inch P400 Grit

Product Description

The 3M 7000144085 is a coated abrasive hook-and-loop sanding disc engineered for fine finishing work. The disc measures 3 inches in diameter and carries a P400 grit aluminum oxide mineral, making it well-suited for light material removal and surface preparation before final coats. A proprietary multi-hole pattern improves dust extraction compared to standard 5- or 6-hole disc designs, keeping the work surface cleaner and extending disc life. Open-coat construction combined with a load-resistant coating resists clogging during use. The lightweight A-weight paper backing keeps the disc flexible and responsive on contoured or flat surfaces. Finishing contractors and skilled tradespeople working in woodworking, cabinet, or surface prep applications will find this disc a reliable production tool.

This disc is designed for finishing applications where fine grit abrasives and effective dust management are priorities. The multi-hole pattern supports use with compatible dust-extraction backing pads and random orbital sanders equipped for hook-and-loop attachment. Typical applications include finish sanding of wood, MDF, primers, and light composites before coating or painting. The hook-and-loop fastening system allows quick disc changes and permits reuse of individual discs when they remain serviceable, reducing material waste on the job.

Key Features

• Multi-hole pattern evacuates dust more effectively than standard 5- or 6-hole disc designs, increasing cut rate and disc life
• P400 aluminum oxide grit delivers consistent fine finishing performance on wood, composites, and primed surfaces
• Open-coat construction with load-resistant coating resists clogging and maintains cutting action longer
• Hook-and-loop attachment allows fast disc changes and supports disc reuse for the full service life of the abrasive
• Lightweight A-weight paper backing provides flexibility suited to finishing passes on flat and contoured surfaces

Compatibility

Designed for use with hook-and-loop random orbital sanders and backing pads that accept 3-inch diameter discs with multi-hole dust extraction patterns.

Installation Notes

Attach the disc firmly to a compatible hook-and-loop backing pad before powering on the sander. Verify that the dust extraction holes on the disc align with the port pattern on the backing pad to maintain effective dust evacuation. Inspect the disc before each use and replace it if the abrasive mineral is worn flat or the backing shows tears. Power down and unplug the sander before removing or installing any disc.

Technical Specifications

• Diameter: 3 inches
• Grit: P400
• Abrasive Mineral: Aluminum Oxide
• Backing Weight: A-Weight Paper
• Coat Type: Open Coat
• Attachment Type: Hook and Loop
• Unit Weight: 0.01 pounds
• Package Dimensions: 6.88 x 6.88 x 5.88 inches
• Sold As: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000144085