Serious Grit 14-Hole 320 Grit Sanding Sheets – 3x5 in (80x133 mm) – Fits Festool RTS 400 & Mirka Deos 353 – 50 Pack

Overview

Serious Grit 320 Grit sanding sheets are engineered for sheet sanders, delivering reliable performance across a range of materials. Sized at 3x5 inches (80x133 mm) with a 14-hole pattern, these heavy-duty, film-backed sheets are designed to align with Festool RTS 400 and Mirka Deos 353 sanders. The combination of durable backing and a robust abrasive encourages a steady contact with the work surface while maintaining consistent dust extraction efficiency.

Key Benefits

• Compatibility with Festool RTS 400 and Mirka Deos 353 for versatile workflow
• Heavy-duty polyester film backing improves durability and heat dissipation
• Anti-clog zinc stearate coating helps shed dust for smoother operation
• Film-backed discs stay flatter and stronger, delivering a steadier finish
• 14-hole design enhances dust extraction and reduces clogging risk
• Wet/dry capable, making these discs suitable for woodworking, metalwork, auto body prep, and more

Ideal Uses

• Wood, metal, drywall, epoxy, and painted surfaces
• Auto body work including paint removal and wet sanding
• Detail sanding around edges and contours where tearing is a concern

How to Get the Best Results

Pair these sheets with a compatible vacuum or dust extractor to maximize dust control. Use steady, even pressure to maintain surface contact and minimize heat buildup, and replace when the backing shows wear. While results can vary by project, users often notice a smoother finish and more consistent cutting power across the sheet’s life.