3M 01218 400 Grit Hookit™ Red Abrasive Discs deliver fine sanding performance for surface refinement, blending, and pre-finish preparation in automotive body repair. Featuring 3M’s Hookit™ hook-and-loop system for quick, tool-free disc changes.
Key Features
- 400 Grit Fine Abrasive: Ideal for surface smoothing, feather-edging, and final prep before primer or paint
- 6″ Disc Size: Standard diameter for DA sanders
- Hookit™ Attachment: Secure hook-and-loop backing for fast disc changes
- Red Abrasive: Durable aluminum oxide for reliable performance
- 50-Piece Pack: Great quantity for professional body shops
Frequently Asked Questions
What is 400 grit used for on a DA sander?
400 grit Hookit discs are used for final sanding of primer surfacer before sealer and basecoat, feather-edging repair areas, and scuffing panels for repainting. Many paint manufacturers specify 400 grit as minimum for basecoat adhesion.
What pad do I need?
Use a 6-inch Hookit (hook-and-loop) backing pad like the 3M 05776.
How many discs in a pack?
Each pack contains 50 discs.








