Serious Grit – 3" x 5" 120 Grit 14-Hole Sanding Sheets for Festool RTS 400 & Mirka DEOS 353 | 50 Pack

Serious Grit introduces a durable sanding solution designed for sheet sanders. These 3" x 5" (80 mm x 133 mm) 14-hole sheets deliver reliable performance across wood, metal, drywall, epoxy, and painted surfaces. The hook-and-loop system remains compatible with popular models, while the film-backed design helps maintain a flatter disc and a smoother finish. This pack provides a consistent supply for continued projects, whether you’re refining furniture, prepping surfaces for paint, or tidying up edges after a heavy sanding session.

Why these sheets stand out

• FITS FESTOOL RTS 400 & MIRKA DEOS 353 – precisely sized sheets with a reliable hook-and-loop connection.
• HEAVY-DUTY POLYESTER FILM BACKING – sits between abrasive grain and backing for improved durability and heat management.
• ANTI- CLOG COATING – zinc stearate coating sheds dust, helping maintain effectiveness during extended sanding.
• DURABLE CONSTRUCTION – film backing resists tearing around corners and edges for long life.
• LESS CLOGGING, MORE CUTTING – designed to stay effective longer, especially when paired with a dust extractor or vacuum system.
• SMOOTHER FINISH – a flatter, stronger disc texture yields a more consistent surface compared with paper or mesh discs.

Use cases and practical benefits

• Ideal for initial surface prep on wood, metal, drywall, epoxy, and painted finishes.
• Suitable for both dry and wet sanding workflows, with reliable dust control when connected to a extractor.
• Great for corners and irregular edges due to the rigid film backing and 14-hole pattern that aids dust removal.
• Great for auto body prep and finish work where a consistent, swirl-free appearance matters.

These sheets come in a 50-pack box, offering a steady supply for workshops and busy job sites. They are designed to empower projects with dependable performance while focusing on user-friendly operation. While results vary by task, the combination of film backing, anti-clog coating, and a hole pattern aimed at efficient dust extraction makes these sheets a solid option for practitioners seeking steady progress without breakthrough wear on the disc.