320 Grit Sanding Discs: Ultra-Fine Sanding for Finish Perfection

320 grit sanding discs are the final step for ultra-smooth surfaces before finishing. Found in the 5-Inch 8-Hole Sanding Discs, Hook & Loop, Assorted Grit (50-Pack), they ensure flawless results on wood, metal, paint, and plastic.

Why 320 Grit is the Finishing Essential

This fine grit removes micro-scratches left by 220 grit while leaving just enough texture for finishes to adhere. It’s the professional choice for high-end furniture, cabinetry, and automotive finishing.

Best Uses for 320 Grit

• Final Wood Prep: Smooths wood before stain, varnish, or lacquer.
• Between Coats: Scuff-sands clear coats or paint for adhesion.
• Automotive Work: Refines primer or clear coats before polishing.
• Detail Sanding: Perfect for trim, moldings, and intricate projects.

Tools & Setup

• 320 Grit Sanding Disc from the 50-Pack
• Random orbital sander with hook & loop backing pad
• Dust extraction or vacuum system
• Protective eyewear and dust mask

Step-by-Step: Using 320 Grit

1. Work Up to 220 Grit: Remove scratches and prep with finer sanding first.
2. Attach the 320 Disc: Align the 8-hole design for maximum dust collection.
3. Sand Lightly: Use gentle, even strokes to refine the surface.
4. Check Surface Smoothness: Feel for uniform texture with your fingertips.
5. Clean Thoroughly: Vacuum and tack cloth before finishing.

Pro Tips

• Use bright lighting to detect fine scratches.
• Always sand with the grain to avoid swirl marks.
• Change discs before they dull to keep results consistent.

Common Mistakes

• Skipping 320 Grit: Can leave micro-marks visible under glossy finishes.
• Using Too Early: Not effective for coarse removal.
• Over-Sanding: Can overly polish surfaces, reducing finish adhesion.

FAQs

• Is 320 grit a final grit? Yes, ideal for final prep before finishes or polishing.
• Can it be used on metal? Yes, excellent for smoothing before primer or paint.
• Is it good for between coats? Absolutely—perfect for scuff-sanding.

Watch 320 Grit in Action

When flawless finishing is your goal, 320 grit sanding discs are a must. Add the 5-Inch 8-Hole Sanding Discs (50-Pack) to your workshop and achieve professional, glass-smooth results every time.